diff --git a/kmk/common/consts.py b/kmk/common/consts.py
index 064a9b0..426d488 100644
--- a/kmk/common/consts.py
+++ b/kmk/common/consts.py
@@ -143,3 +143,10 @@ class UnicodeModes:
     LINUX = IBUS = 1
     MACOS = OSX = RALT = 2
     WINC = 3
+
+
+class LeaderMode:
+    Default = 0
+    Default_Active = 1
+    Enter = 2
+    Enter_Active = 3
diff --git a/kmk/common/event_defs.py b/kmk/common/event_defs.py
index 51ba8eb..96e94bf 100644
--- a/kmk/common/event_defs.py
+++ b/kmk/common/event_defs.py
@@ -25,7 +25,6 @@ InitFirmware = namedtuple('InitFirmware', (
     'row_pins',
     'col_pins',
     'diode_orientation',
-    'unicode_mode',
 ))
 
 KeyUpDown = namedtuple('KeyUpDown', ('type', 'row', 'col'))
@@ -34,14 +33,13 @@ NewMatrix = namedtuple('NewMatrix', ('type', 'matrix'))
 BareEvent = namedtuple('BareEvent', ('type',))
 
 
-def init_firmware(keymap, row_pins, col_pins, diode_orientation, unicode_mode):
+def init_firmware(keymap, row_pins, col_pins, diode_orientation):
     return InitFirmware(
         type=INIT_FIRMWARE_EVENT,
         keymap=keymap,
         row_pins=row_pins,
         col_pins=col_pins,
         diode_orientation=diode_orientation,
-        unicode_mode=unicode_mode,
     )
 
 
diff --git a/kmk/common/internal_state.py b/kmk/common/internal_state.py
index 861cb13..9dc3014 100644
--- a/kmk/common/internal_state.py
+++ b/kmk/common/internal_state.py
@@ -2,7 +2,7 @@ import logging
 import sys
 
 from kmk.common import kmktime
-from kmk.common.consts import DiodeOrientation, UnicodeModes
+from kmk.common.consts import DiodeOrientation, LeaderMode, UnicodeModes
 from kmk.common.event_defs import (HID_REPORT_EVENT, INIT_FIRMWARE_EVENT,
                                    KEY_DOWN_EVENT, KEY_UP_EVENT,
                                    KEYCODE_DOWN_EVENT, KEYCODE_UP_EVENT,
@@ -69,28 +69,31 @@ class InternalState:
     keys_pressed = set()
     pending_keys = set()
     macro_pending = None
+    leader_pending = None
+    leader_last_len = 0
     hid_pending = False
-    unicode_mode = UnicodeModes.NOOP
-    tap_time = 300
     keymap = []
     row_pins = []
     col_pins = []
     matrix = []
     diode_orientation = DiodeOrientation.COLUMNS
+    leader_mode_history = []
     active_layers = [0]
     start_time = {
         'lt': None,
         'tg': None,
         'tt': None,
-    }
-    tick_time = {
-        'lt': None,
-        'tg': None,
-        'tt': None,
+        'lm': None,
+        'leader': None,
     }
     _oldstates = []
 
     def __init__(self, preserve_intermediate_states=False):
+        import kmk_keyboard_user
+        self.unicode_mode = getattr(kmk_keyboard_user, 'unicode_mode', UnicodeModes.NOOP)
+        self.tap_time = getattr(kmk_keyboard_user, 'tap_time', 300)
+        self.leader_mode = getattr(kmk_keyboard_user, 'leader_mode', LeaderMode.Enter)
+        self.LEADER_DICTIONARY = getattr(kmk_keyboard_user, 'LEADER_DICTIONARY', {})
         self.preserve_intermediate_states = preserve_intermediate_states
 
     def __enter__(self):
@@ -105,8 +108,8 @@ class InternalState:
             'active_layers': self.active_layers,
             'unicode_mode': self.unicode_mode,
             'tap_time': self.tap_time,
+            'leader_mode_history': self.leader_mode_history,
             'start_time': self.start_time,
-            'tick_time': self.tick_time,
         }
 
         if verbose:
@@ -196,18 +199,19 @@ def kmk_reducer(state=None, action=None, logger=None):
         state.matrix = action.matrix
         state.keys_pressed |= pressed
         state.keys_pressed -= released
-        state.hid_pending = True
+        if state.leader_mode % 2 == 1:
+            state.hid_pending = False
+        else:
+            state.hid_pending = True
 
         return state
 
     if action.type == KEYCODE_UP_EVENT:
         state.keys_pressed.discard(action.keycode)
-        state.hid_pending = True
         return state
 
     if action.type == KEYCODE_DOWN_EVENT:
         state.keys_pressed.add(action.keycode)
-        state.hid_pending = True
         return state
 
     if action.type == INIT_FIRMWARE_EVENT:
@@ -216,7 +220,6 @@ def kmk_reducer(state=None, action=None, logger=None):
             row_pins=action.row_pins,
             col_pins=action.col_pins,
             diode_orientation=action.diode_orientation,
-            unicode_mode=action.unicode_mode,
         )
 
     # HID events are non-mutating, used exclusively for listeners to know
@@ -224,7 +227,6 @@ def kmk_reducer(state=None, action=None, logger=None):
     # into KEY_UP_EVENT and KEY_DOWN_EVENT, but for now it's nice to separate
     # this out for debugging's sake.
     if action.type == HID_REPORT_EVENT:
-        state.hid_pending = False
         return state
 
     if action.type == MACRO_COMPLETE_EVENT:
@@ -268,6 +270,8 @@ def process_internal_key_event(state, action_type, changed_key, logger=None):
         return unicode_mode(state, action_type, changed_key, logger=logger)
     elif changed_key.code == RawKeycodes.KC_MACRO:
         return macro(state, action_type, changed_key, logger=logger)
+    elif changed_key.code == Keycodes.KMK.KC_LEAD.code:
+        return leader(state)
     else:
         return state
 
@@ -410,3 +414,12 @@ def macro(state, action_type, changed_key, logger):
             return state
 
     return state
+
+
+def leader(state):
+    if state.leader_mode % 2 == 0:
+        state.keys_pressed.discard(Keycodes.KMK.KC_LEAD)
+        # All leader modes are one number higher when activating
+        state.leader_mode += 1
+
+    return state
diff --git a/kmk/common/leader_mode.py b/kmk/common/leader_mode.py
new file mode 100644
index 0000000..d5fab75
--- /dev/null
+++ b/kmk/common/leader_mode.py
@@ -0,0 +1,86 @@
+import logging
+
+from kmk.common.keycodes import Keycodes
+
+
+class LeaderHelper:
+    """
+        Acts as a hid to absorb keypress, and perform macros when a timer
+        or enter key is pressed depending on the mode set.
+    """
+    def __init__(self, store, log_level=logging.NOTSET):
+        self.logger = logging.getLogger(__name__)
+        self.logger.setLevel(log_level)
+
+        self.store = store
+        self.store.subscribe(
+            lambda state, action: self._subscription(state, action),
+        )
+
+    def _subscription(self, state, action):
+        """
+        Subscribes to the state machine, and dispatches actions based
+        based on incoming keypresses, or when a timer runs out depending
+        on the mode.
+        :param state:
+        :param action:
+        :return state:
+        """
+        if state.leader_mode % 2 == 1:
+            keys_pressed = state.keys_pressed
+
+            if state.leader_last_len and state.leader_mode_history:
+                history_set = set(state.leader_mode_history)
+
+                keys_pressed = keys_pressed - history_set
+
+            state.leader_last_len = len(state.keys_pressed)
+
+            for key in keys_pressed:
+                if key == Keycodes.Common.KC_ENT:
+                    # Process the action and remove the extra KC.ENT that was added to get here
+                    state = process(state)
+                    return clean_exit(state)
+                elif key == Keycodes.Common.KC_ESC:
+                    # Clean state and turn leader mode off.
+                    return clean_exit(state)
+                elif key == Keycodes.KMK.KC_LEAD:
+                    return state
+                else:
+                    # Add key if not needing to escape
+                    # This needs replaced later with a proper debounce
+                    state.leader_mode_history.append(key)
+                    return state
+
+        return state
+
+
+def clean_exit(state):
+    """
+    Cleans up the state and hands the HID control back.
+    :param state:
+    :return state:
+    """
+    state.leader_mode_history = []
+    state.leader_mode -= 1
+    state.leader_last_len = 0
+    state.keys_pressed.clear()
+    return state
+
+
+def process(state):
+    """
+    Checks if there are iny matching sequences of keys, and
+    performs the macro specified by the user.
+    :param state:
+    :param leader_dictionary:
+    :return state:
+    """
+    lmh = tuple(state.leader_mode_history)
+
+    if lmh in state.LEADER_DICTIONARY:
+        state.macro_pending = state.LEADER_DICTIONARY[lmh].keydown
+
+    state.keys_pressed.clear()
+
+    return state
diff --git a/kmk/entrypoints/handwire/pyboard.py b/kmk/entrypoints/handwire/pyboard.py
index 72b467f..97816c0 100644
--- a/kmk/entrypoints/handwire/pyboard.py
+++ b/kmk/entrypoints/handwire/pyboard.py
@@ -1,19 +1,28 @@
 import sys
-from logging import DEBUG
 
-from kmk.common.consts import UnicodeModes
+import gc
+
 from kmk.firmware import Firmware
 from kmk.micropython.matrix import MatrixScanner
 from kmk.micropython.pyb_hid import HIDHelper
 
 
 def main():
-    from kmk_keyboard_user import cols, diode_orientation, keymap, rows
+    import kmk_keyboard_user
+    cols = getattr(kmk_keyboard_user, 'cols')
+    diode_orientation = getattr(kmk_keyboard_user, 'diode_orientation')
+    keymap = getattr(kmk_keyboard_user, 'keymap')
+    rows = getattr(kmk_keyboard_user, 'rows')
 
-    try:
-        from kmk_keyboard_user import unicode_mode
-    except Exception:
-        unicode_mode = UnicodeModes.NOOP
+    DEBUG_ENABLE = getattr(kmk_keyboard_user, 'DEBUG_ENABLE', False)
+
+    if DEBUG_ENABLE:
+        from logging import DEBUG
+    else:
+        from logging import ERROR as DEBUG
+
+    # This will run out of ram at this point unless you manually GC
+    gc.collect()
 
     try:
         firmware = Firmware(
@@ -21,11 +30,12 @@ def main():
             row_pins=rows,
             col_pins=cols,
             diode_orientation=diode_orientation,
-            unicode_mode=unicode_mode,
             hid=HIDHelper,
             log_level=DEBUG,
             matrix_scanner=MatrixScanner,
         )
+        # This will run out of ram at this point unless you manually GC
+        gc.collect()
 
         firmware.go()
     except Exception as e:
diff --git a/kmk/firmware.py b/kmk/firmware.py
index b58b3cf..706b05c 100644
--- a/kmk/firmware.py
+++ b/kmk/firmware.py
@@ -2,14 +2,16 @@ import logging
 
 from kmk.common.event_defs import init_firmware
 from kmk.common.internal_state import Store, kmk_reducer
+from kmk.common.leader_mode import LeaderHelper
 
 
 class Firmware:
     def __init__(
         self, keymap, row_pins, col_pins,
-        diode_orientation, unicode_mode=None,
-        hid=None, log_level=logging.NOTSET,
-        matrix_scanner=None,
+            diode_orientation, unicode_mode=None,
+            hid=None,
+            log_level=logging.NOTSET,
+            matrix_scanner=None,
     ):
         assert matrix_scanner is not None
         self.matrix_scanner = matrix_scanner
@@ -32,12 +34,13 @@ class Firmware:
                 "Board will run in debug mode",
             )
 
+        self.leader_helper = LeaderHelper(store=self.store, log_level=log_level)
+
         self.store.dispatch(init_firmware(
             keymap=keymap,
             row_pins=row_pins,
             col_pins=col_pins,
             diode_orientation=diode_orientation,
-            unicode_mode=unicode_mode,
         ))
 
     def _subscription(self, state, action):
diff --git a/kmk/micropython/pyb_hid.py b/kmk/micropython/pyb_hid.py
index 97edc60..4144e09 100644
--- a/kmk/micropython/pyb_hid.py
+++ b/kmk/micropython/pyb_hid.py
@@ -34,6 +34,6 @@ class HIDHelper(AbstractHidHelper):
         # It'd be real awesome if pyb.USB_HID.send/recv would support
         # uselect.poll or uselect.select to more safely determine when
         # it is safe to write to the host again...
-        delay(5)
+        delay(1)
 
         return self
diff --git a/user_keymaps/kdb424/handwire_planck_pyboard.py b/user_keymaps/kdb424/handwire_planck_pyboard.py
index 3671270..9975c45 100644
--- a/user_keymaps/kdb424/handwire_planck_pyboard.py
+++ b/user_keymaps/kdb424/handwire_planck_pyboard.py
@@ -1,4 +1,4 @@
-from kmk.common.consts import DiodeOrientation, UnicodeModes
+from kmk.common.consts import DiodeOrientation, LeaderMode, UnicodeModes
 from kmk.common.keycodes import KC
 from kmk.common.macros.unicode import unicode_sequence
 from kmk.common.pins import Pin as P
@@ -9,9 +9,14 @@ rows = (P.Y1, P.Y2, P.Y3, P.Y4)
 
 diode_orientation = DiodeOrientation.COLUMNS
 
-unicode_mode = UnicodeModes.LINUX
-tap_time = 180
 
+# ------------------User level config variables ---------------------------------------
+unicode_mode = UnicodeModes.LINUX
+tap_time = 150
+leader_timeout = 2000
+DEBUG_ENABLE = True
+
+# -------------------------------Macros -----------------------------------------------
 FLIP = unicode_sequence([
     "28",
     "30ce",
@@ -26,13 +31,74 @@ FLIP = unicode_sequence([
     "253b",
 ])
 
+# ---------------------- Leader Key Macros --------------------------------------------
+
+LEADER_DICTIONARY = {
+    (KC.F, KC.L, KC.I, KC.P):
+    unicode_sequence([
+        "28",
+        "30ce",
+        "ca0",
+        "75ca",
+        "ca0",
+        "29",
+        "30ce",
+        "5f61",
+        "253b",
+        "2501",
+        "253b",
+    ]),
+    (KC.C, KC.H, KC.E, KC.E, KC.R):
+    unicode_sequence([
+        '002B',
+        'FF61',
+        '003A',
+        '002E',
+        'FF9F',
+        '30FD',
+        '0028',
+        '00B4',
+        '2200',
+        'FF61',
+        '0029',
+        'FF89',
+        'FF9F',
+        '002E',
+        '003A',
+        'FF61',
+        '002B',
+        'FF9F',
+        'FF9F',
+        '002B',
+        'FF61',
+        '003A',
+        '002E',
+        'FF9F',
+        '30FD',
+        '0028',
+        '002A',
+        '00B4',
+        '2200',
+        '0029',
+        'FF89',
+        'FF9F',
+        '002E',
+        '003A',
+        'FF61',
+        '002B',
+        'FF9F',
+    ]),
+}
+
+# ---------------------- Keymap ---------------------------------------------------------
+
 keymap = [
     [
         # Default
         [KC.GESC, KC.QUOTE, KC.COMMA, KC.DOT, KC.P, KC.Y, KC.F, KC.G, KC.C, KC.R, KC.L, KC.BKSP],
         [KC.TAB, KC.A, KC.O, KC.E, KC.U, KC.I, KC.D, KC.H, KC.T, KC.N, KC.S, KC.ENT],
         [KC.LSFT, KC.SCLN, KC.Q, KC.J, KC.K, KC.X, KC.B, KC.M, KC.W, KC.V, KC.Z, KC.SLSH],
-        [KC.LCTRL, KC.LGUI, KC.LALT, KC.NO, KC.MO(2), KC.LT(3, KC.SPC), KC.LT(3, KC.SPC), KC.MO(4), KC.LEFT, KC.DOWN, KC.UP, KC.RIGHT],
+        [KC.LCTRL, KC.LGUI, KC.LALT, KC.LEAD, KC.MO(2), KC.LT(3, KC.SPC), KC.LT(3, KC.SPC), KC.MO(4), KC.LEFT, KC.DOWN, KC.UP, KC.RIGHT],
     ],
     [
         # Gaming