The elbow could not be lifted out to the side: it bent only towards the
fixed pole (down, out, back). An elbow lifted out rolls the controller's
top in, so the pole now leans towards the hand's underside (the weapon's
for the right arm, the free left controller's for the left; the hand on
the foregrip keeps the fixed pole). With the free arm solved before its
hand is turned it looked right on the Quest: vr.arm_ik defaults to true.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
