diff --git a/packages/mhfu-port/src/mhfu_port/brain/own.py b/packages/mhfu-port/src/mhfu_port/brain/own.py
index 60f56f05..0274c8ae 100644
--- a/packages/mhfu-port/src/mhfu_port/brain/own.py
+++ b/packages/mhfu-port/src/mhfu_port/brain/own.py
@@ -267,7 +267,7 @@ def _move(self, step: Step, after: str | None) -> Move:
         return Move(
             clip=self._clip(step.clip),
             attacks=self._attacks(step, until if length.loop else min(until, length.frames)),
-            steer=self._steer(step),
+            steer=self._steer(step, walls=length.loop),
             length=max(1, step.ticks) if cut else None,
             after=after,
             label=f"MHP3rd {self.pair[0]},{self.pair[1]}",
@@ -321,9 +321,11 @@ def _attacks(self, step: Step, until: float) -> list[AttackWindow]:
             out = out[:MOVE_ATTACKS]
         return out
 
-    def _steer(self, step: Step) -> Steer:
+    def _steer(self, step: Step, walls: bool) -> Steer:
+        """The donor's turn; a wall ends only a step on a looping clip, a run (the donor ends no
+        move at a wall: a one-shot stop or blow plays out where it stands)."""
         if not step.turns:
-            return Steer()
+            return Steer(walls=walls)
         turn = max(step.turns, key=lambda t: t.window[1] - t.window[0])
         if len(step.turns) > 1:
             self.find(
@@ -336,7 +338,8 @@ def _steer(self, step: Step) -> Steer:
             self.find("info", "P3_OWN_MOTION", f"turn rate {rate} is out of range: the host's")
             rate = None
         lo = round(turn.window[0])
-        return Steer(turn="hunter", rate=rate, window=(lo, max(lo + 1, round(turn.window[1]))))
+        window = (lo, max(lo + 1, round(turn.window[1])))
+        return Steer(turn="hunter", rate=rate, walls=walls, window=window)
 
 
 def pairs(b: Brain) -> list[Pair]:
diff --git a/packages/mhfu-port/tests/test_brute_brain.py b/packages/mhfu-port/tests/test_brute_brain.py
index b51d6f1f..ec273495 100644
--- a/packages/mhfu-port/tests/test_brute_brain.py
+++ b/packages/mhfu-port/tests/test_brute_brain.py
@@ -2,10 +2,11 @@
 # SPDX-FileCopyrightText: 2026 sp00ktober
 from pathlib import Path
 
-from mhfu.em.script import build
+from mhfu import addresses
+from mhfu.em.script import build, ir
 from mhfu.em.script import vars as script_vars
-from mhfu_port import layout, manifest, motion, slots
-from mhfu_port.brain import p3, splice
+from mhfu_port import layout, manifest, motion, moves, slots
+from mhfu_port.brain import own, p3, splice
 
 PORT = Path(__file__).parents[3] / "ports" / "brute_tigrex.toml"
 
@@ -17,10 +18,22 @@ def test_loads():
     assert (m.brain.donor, m.brain.splice, m.brain.entry) == (23, "base_3", "base_12")
 
 
-def test_charge_is_the_host_pair_of_the_donor_charge():
+OWN = [(1, 15), (2, 19), (2, 20), (2, 23), (7, 13), (7, 14), (7, 15)]
+
+
+def test_moves_with_no_host_pair_are_derived():
     m = manifest.load(PORT)
+    assert m.brain is not None and m.brain.fatigue
+    assert [p for p in own.pairs(m.brain)] == OWN
+
+
+def spliced(data):
+    m, derived = own.expand(manifest.load(PORT), data)
     assert m.brain is not None
-    assert m.moves["charge"].pair == m.brain.host_pair((7, 13))
+    host = build.lift_row(data.fu, m.port.host_species, m.port.host_species)
+    survey = script_vars.survey(host, data.fu.em(m.port.host_species))
+    donor = p3.lift(data.p3rd, m.brain.donor, m.brain.slot)
+    return m, derived, host, splice.splice(donor, host, m.brain, survey, moves.slots(m))
 
 
 def test_pins_land(data):
@@ -36,20 +49,30 @@ def test_pins_land(data):
 
 
 def test_brain_splices_into_its_host(data):
-    m = manifest.load(PORT)
-    assert m.brain is not None
-    host = build.lift_row(data.fu, m.port.host_species, m.port.host_species)
-    survey = script_vars.survey(host, data.fu.em(m.port.host_species))
-    s = splice.splice(p3.lift(data.p3rd, m.brain.donor, m.brain.slot), host, m.brain, survey)
-    assert not [f for f in s.findings if f.level == "error" or f.code == "P3_PAIR_UNUSED"]
+    m, derived, host, s = spliced(data)
+    found = [*derived, *s.findings]
+    assert not [f for f in found if f.level == "error" or f.code == "P3_PAIR_UNUSED"]
     assert build.Built.of(host, s.edits).ok
+    names = {own.own_name(p) for p in OWN}
+    assert names <= set(s.slots) and {n for _, n in s.uses if isinstance(n, str)} == names
+
+
+def test_brain_enters_own_moves_and_reads_tired_from_gauge_a(data):
+    _, _, host, s = spliced(data)
+    p = build.Built.of(host, s.edits).program
+    insns = [n for r in p.routines() for n in ir.walk(r.body) if isinstance(n, ir.Insn)]
+    own_enters = {
+        n.args["sub"]
+        for n in insns
+        if n.op.name == "enter" and n.args["main"] == addresses.OWN_MOVE_MAIN
+    }
+    assert own_enters == set(s.slots.values())
+    tests = [n for r in p.routines() for n in ir.walk(r.body) if isinstance(n, ir.Block)]
+    assert any(n.op.name == "if_gauge_a_low" for n in tests)
 
 
 def test_brain_keeps_its_call_history_in_the_first_free_variable(data):
-    m = manifest.load(PORT)
+    m, _, _, s = spliced(data)
     assert m.brain is not None and m.brain.history is None
-    host = build.lift_row(data.fu, m.port.host_species, m.port.host_species)
-    survey = script_vars.survey(host, data.fu.em(m.port.host_species))
-    s = splice.splice(p3.lift(data.p3rd, m.brain.donor, m.brain.slot), host, m.brain, survey)
     (note,) = [f for f in s.findings if f.code == "P3_HISTORY"]
     assert note.level == "info" and "script variable 2" in note.text
diff --git a/packages/mhfu-port/tests/test_fatigue.py b/packages/mhfu-port/tests/test_fatigue.py
index ca7f4b67..bfded70f 100644
--- a/packages/mhfu-port/tests/test_fatigue.py
+++ b/packages/mhfu-port/tests/test_fatigue.py
@@ -355,8 +355,7 @@ def test_a_host_without_reactions_says_so(data):
 
 def test_the_moves_module_carries_the_table(data, tmp_path, capsys):
     path = tmp_path / "m.toml"
-    text = (PORTS / "brute_tigrex.toml").read_text()
-    path.write_text(text.replace("\n[brain]\n", "\n[brain]\nfatigue = true\n", 1))
+    path.write_text((PORTS / "brute_tigrex.toml").read_text())
     games = ["--data", str(data.fu.root), "--p3rd-data", str(data.p3rd.root)]
     assert main(["build", str(path), "-o", str(tmp_path / "out.bin"), *games]) == 0
     module = (tmp_path / moves.module_name(manifest.load(path))).read_text()
diff --git a/packages/mhfu-port/tests/test_own.py b/packages/mhfu-port/tests/test_own.py
index 8abf539b..bbfda846 100644
--- a/packages/mhfu-port/tests/test_own.py
+++ b/packages/mhfu-port/tests/test_own.py
@@ -94,7 +94,7 @@ def test_a_step_is_a_move():
         AttackWindow(7, 135, 165, label="donor 21"),
         AttackWindow(8, 138, 148, label="donor 28"),
     ]
-    assert mv.steer == Steer(turn="hunter", rate=546, window=(10, 40))
+    assert mv.steer == Steer(turn="hunter", rate=546, walls=False, window=(10, 40))
     assert "p3_61" not in m.clips and codes(found) == ["P3_OWN_ACTIVE", "P3_OWN_GROUP"]
     manifest.check(m)
 
@@ -238,7 +238,7 @@ def test_brute_charge(derived):
     m, _ = derived
     charge = m.moves["p3_7_13"]
     assert charge.clip == "charge" and windows(m, "p3_7_13") == [(7, 135, 165), (8, 138, 148)]
-    assert charge.steer == Steer(turn="hunter", rate=546, window=(10, 40))
+    assert charge.steer == Steer(turn="hunter", rate=546, walls=False, window=(10, 40))
 
 
 def test_brute_rush_and_leap(derived):
@@ -247,8 +247,9 @@ def test_brute_rush_and_leap(derived):
     assert windows(m, "p3_7_14") == [(15, 85, 144)]
     assert windows(m, "p3_7_14_2") == [(15, 0, 14), (7, 94, 124), (8, 96, 106)]
     assert m.moves["p3_7_14"].steer.rate == 364 and m.moves["p3_7_14"].length == 72
+    assert m.moves["p3_7_14"].steer.walls and not m.moves["p3_7_14_2"].steer.walls
     assert windows(m, "p3_7_15") == [(4, 75, 100)]
-    assert m.moves["p3_7_15"].steer == Steer(turn="hunter", rate=273, window=(0, 20))
+    assert m.moves["p3_7_15"].steer == Steer(turn="hunter", rate=273, walls=False, window=(0, 20))
     left_out = [f for f in found if f.code == "P3_OWN_ATTACK"]
     assert left_out and all("record 26" in f.text for f in left_out)
     assert {f.item for f in found if f.code == "P3_OWN_BRANCH"} >= {"p3_7_14"}
diff --git a/packages/mhfu-port/tests/test_own_cli.py b/packages/mhfu-port/tests/test_own_cli.py
index f74f84ee..8a313e72 100644
--- a/packages/mhfu-port/tests/test_own_cli.py
+++ b/packages/mhfu-port/tests/test_own_cli.py
@@ -28,11 +28,7 @@
 
 
 def brute() -> manifest.Manifest:
-    m = manifest.load(PORTS / "brute_tigrex.toml")
-    assert m.brain is not None
-    for key in ("7,13", "7,14", "7,15", "1,15", "2,19", "2,20", "2,23"):
-        m.brain.pairs[key] = manifest.OWN
-    return m
+    return manifest.load(PORTS / "brute_tigrex.toml")
 
 
 def test_the_cli_needs_an_own_pair(tmp_path, capsys):
@@ -42,13 +38,11 @@ def test_the_cli_needs_an_own_pair(tmp_path, capsys):
     assert "no [brain.pairs] entry" in capsys.readouterr().err
 
 
-def test_the_cli_lists_the_moves(data, capsys, tmp_path):
-    text = (PORTS / "brute_tigrex.toml").read_text()
-    path = tmp_path / "brute.toml"
-    path.write_text(text.replace('"7,13" = [\n    2,\n    8,\n]', '"7,13" = "own"'))
+def test_the_cli_lists_the_moves(data, capsys):
+    path = PORTS / "brute_tigrex.toml"
     code = main(["own", str(path), "--data", str(data.fu.root), "--p3rd-data", str(data.p3rd.root)])
     out = capsys.readouterr().out
-    assert code == 0 and "p3_7_13 (slot 0)  clip 61 charge" in out
+    assert code == 0 and "p3_7_13 (slot 6)  clip 61 charge" in out
     assert "donor 21 -> host record 7, frames 135-165" in out
 
 
@@ -66,12 +60,8 @@ def test_the_moves_module_carries_the_derived_moves(data, tmp_path):
     assert 'after = "p3_7_14_2"' in text and any(f.code == "P3_OWN_ATTACK" for f in seen)
 
 
-def test_the_splice_enters_the_derived_moves(data, tmp_path, capsys):
-    text = (PORTS / "brute_tigrex.toml").read_text()
-    path = tmp_path / "brute.toml"
-    own_pairs = text.replace('"7,13" = [\n    2,\n    8,\n]', '"7,13" = "own"')
-    path.write_text(own_pairs.replace('"7,14" = [\n    1,\n    9,\n]', '"7,14" = "own"'))
+def test_the_splice_enters_the_derived_moves(data, capsys):
     args = ["--data", str(data.fu.root), "--p3rd-data", str(data.p3rd.root)]
-    assert main(["splice", str(path), *args]) == 0
+    assert main(["splice", str(PORTS / "brute_tigrex.toml"), *args]) == 0
     out = capsys.readouterr().out
-    assert "pair 7,13 -> own p3_7_13 (slot 0)" in out and "pair 7,14 -> own p3_7_14 (slot 1)" in out
+    assert "pair 7,13 -> own p3_7_13 (slot 6)" in out and "pair 7,14 -> own p3_7_14 (slot 7)" in out
diff --git a/ports/brute_tigrex.toml b/ports/brute_tigrex.toml
index 68bbf862..271c786e 100644
--- a/ports/brute_tigrex.toml
+++ b/ports/brute_tigrex.toml
@@ -265,15 +265,11 @@ source = 117
 slot = 98
 source = 118
 
-[moves.charge]
-main = 2
-sub = 8
-clip = "charge"
-
 [brain]
 donor = 23
 splice = "base_3"
 entry = "base_12"
+fatigue = true
 
 [brain.pairs]
 "1,1" = [
@@ -288,10 +284,7 @@ entry = "base_12"
     0,
     21,
 ]
-"1,15" = [
-    0,
-    27,
-]
+"1,15" = "own"
 "2,3" = [
     1,
     2,
@@ -312,22 +305,13 @@ entry = "base_12"
     1,
     5,
 ]
-"2,19" = [
-    2,
-    4,
-]
-"2,20" = [
-    1,
-    10,
-]
+"2,19" = "own"
+"2,20" = "own"
 "2,22" = [
     1,
     4,
 ]
-"2,23" = [
-    2,
-    19,
-]
+"2,23" = "own"
 "3,2" = [
     2,
     1,
@@ -368,19 +352,9 @@ entry = "base_12"
     3,
     36,
 ]
-"7,13" = [
-    2,
-    8,
-]
-"7,14" = [
-    1,
-    9,
-]
-"7,15" = [
-    3,
-    37,
-]
+"7,13" = "own"
+"7,14" = "own"
+"7,15" = "own"
 
 [brain.when]
 if_target_state = true
-if_tired = false