Going back to the video-clip; at 3:40 in the clip (17h20m50s videotime), I'm doing a few quick left/right/left/right steering movements.

Besides the light up&down play in the swaybar bushing, I'm also noticing some K-member flexing where the swaybar bushings are mounted to the K-member.

During the entire clip I do see some occassional overal movements but I think most are due to the vibrations and the refresh rate of the camera when it encounters some vibrations through its mounting. The camera was mounted to the fender strut.

(This K-member has not been reinforced, except for the steering box mounting pad.)