bar for support, angled it to fit my feet, glued it in with Marine Goop. The hardest thing was cutting it to fit. I got close and used small minicell wedges to fit it.
I especially like the angle to fit my feet. Much more comfortable than a bar. Doesn't adjust though.
Plenty strong and good extra floatation.
hey jack try a piece of 1/8 luan if you are going to glass it then take a piece of pvc pipe and cut a slot along the length where you can pop it on the cross bar and use hose clamps to hold foot rest to bar and pipe.should be able to adjust easy. this will work if you have a cross bar that is fairly low.