Knee bar and seat were intact, but when Chris was able to climb back in the car recently, he belted in and had a hard time figuring out what he hit his knee on. When he tried to slump/submarine down as far as possible he was able to get the knee within a few inches of the knee bar. Add belt stretch and that is probably what happened.

Definitely has me re-thinking my similar cage, and at minimum adding SFI padding to that area.