I find it annoying when my movements don't register and it is usually when I'm doing a squat or leg lift and now that you mention it my kickbacks don't register sometimes and I find them the hardest to do!

I don't use the board so have no advice there although I couldn't imagine doing the workout without shoes esp the track exercises.

I haven't noticed any hand pain but maybe you are gripping too hard? Don't know.

I really need to get back into it as I really enjoy it too. The trainers are going to wonder where I've been