Spine bodies took over the pose and never heard about a spin, so the arms stopped spreading. A spin is now an input to the body: arms up and round on foot, wide on a board or in the air, and a punch or kick keeps its arms. The head swung and bobbed on every step: the whip lag (.4 -> .22) and per-joint sway (.025 -> .012) are down and the neck is firmer (.88, the most the solver holds). Walking, head sway 21.4 -> 11.8 and bob 5.3 -> 2.4; the spine's feel tests and the bot run still pass.