diff --git a/crates/skate-game/src/physics/handplant.rs b/crates/skate-game/src/physics/handplant.rs
index ac2b3b11..d09f2208 100644
--- a/crates/skate-game/src/physics/handplant.rs
+++ b/crates/skate-game/src/physics/handplant.rs
@@ -166,6 +166,27 @@ pub(super) fn ground_update(
     }
     Ok(())
 }
+
+/// Capture the solved pose before the bail check, rather than comparing this
+/// tick's targets against last tick's bodies in HANDPLANT_POSE.
+pub(super) fn trace_solved(physics: &GamePhysics, skater: &SkaterRuntime) {
+    if physics.ticks % 6 != 0 && skater.collision_maximum_error.unwrap_or(0.0) < 0.15 {
+        return;
+    }
+    let root = &skater.animated_skeleton.roots.animation_to_world;
+    let actual = skater.skeleton.part_transforms();
+    let parts = [3, 4, 5, 6, 7, 8, 9, 10];
+    let authored = parts.map(|i| point(root, skater.animated_skeleton.record.pose[i][3]));
+    let targets = parts.map(|i| point(root, skater.skeleton_input.drive_frames[i][3]));
+    let solved = parts.map(|i| actual[i][3]);
+    let strengths = parts.map(|i| skater.skeleton_drives.bones[i].as_ref()
+        .map(|bone| (bone.active, bone.dynamics.strengths)));
+    let ik = &skater.foot_ik.state.limbs;
+    let feedback = &skater.collision_feedback;
+    bevy::log::info!("HANDPLANT_SOLVED tick={} phase={} parts={parts:?} authored={authored:?} targets={targets:?} solved={solved:?} strengths={strengths:?} ik={ik:?} partial={} collision_weight={} pose_errors={:?} anchor={:?}",
+        physics.ticks, skater.handplant.phase, skater.skeleton_collision.partial_ragdoll,
+        feedback.drive_weight, skater.pose_errors.parts, skater.handplant.anchor);
+}
 ///Ground82D38430 submits the candidate before82D37F38 consumes its investigation.
 pub(super) fn ground_query(physics: &GamePhysics, skater: &mut SkaterRuntime) {
     let p = &skater.player_input.processed;
diff --git a/crates/skate-game/src/physics/wipeout.rs b/crates/skate-game/src/physics/wipeout.rs
index 54c766c4..0ae44ab3 100644
--- a/crates/skate-game/src/physics/wipeout.rs
+++ b/crates/skate-game/src/physics/wipeout.rs
@@ -97,6 +97,7 @@ pub(super) fn check_after_physics(
         PhysicalStateId::FootPlant | PhysicalStateId::HandPlant => {
             let frame = observations.frame()?;
             if skater.player_state.current() == PhysicalStateId::HandPlant {
+                super::handplant::trace_solved(physics, skater);
                 //HandPlant vtable823273CC slot40 ->82D4C530 ->82D90358(false).
                 //FootPlant's82D4C6D8 alone uses82D8FDC0. Its low trick-impact
                 //thresholds must not replace HandPlant's normal air checks.
diff --git a/docs/plants.md b/docs/plants.md
index 126df3ea..da440fe0 100644
--- a/docs/plants.md
+++ b/docs/plants.md
@@ -210,3 +210,23 @@ beyond the lip, consistent with the blocked feet and invalid late-entry arc.
 The port now uses the native component order and standalone sin/cos helpers.
 Regression tests cover the observed late-entry COM, apex arrival/zero vertical
 velocity, and zero-angle symmetry. Pose traces remain enabled for verification.
+
+## Arm and variation investigation (8 September, 17:54 run)
+
+User reports the normal body animation improved, with one arm misplaced;
+A/B variations still bail. In plants-20260908-175441-712-2596.log, HandPlant
+requests reason1 (pose displacement) at ticks2209 and5093, without board
+contact or closing velocity. The previous HANDPLANT_POSE samples compare
+current targets with the previous physical pose and cannot identify the
+within-tick source of that displacement.
+
+HANDPLANT_SOLVED now captures authored, IK-adjusted and solved arm positions
+in world coordinates, arm drive strengths, four limb modes/blends, partial
+ragdoll state and per-part pose errors before the handplant bail check. It
+samples every six ticks, or every tick when maximum pose error reaches0.15.
+This is diagnostic only: neither the arm problem nor variation bails are
+claimed fixed. Native82D633B0,82BE3220,82BD9728 and82BEDC10 were inspected;
+the selected arm, two0.65m clamps and feet-only external post pass match the
+existing port. Need another normal/A/B reproduction to locate the divergence.
+The same run later terminates in unsupported IsGrindBluntingBackslash at8059;
+that separate grind condition remains unresolved by this diagnostic change.