Eight matched source roots, eight factual selector arms per root. Target is at (0,0,0); fixed initial target-aligned world-Z-up axes. Metres retain physical scale. Connected observations are not timed motion, swept collision checks or a human-realism score. View shapes, gaze ticks, reversals and geometric bending jointly with endpoint evidence. Missing first bends/yaw changes remain gaps. Bearing wraps at ±180°; a wrap is not a reversal. Plot legends toggle arms; 3D views rotate. CW/CCW requires the world-up orientation, not a screen-relative impression.