[quote="GrahamC"]Use it one-footed. Get someone to throw a medicine ball at you from different angles. Pick up a small weight from the floor, lift it above your head, then put it back down. I have thought about using one with a slosh tube, but never got round to trying it.
When you get too good at something on the board, try it with your eyes closed.
One footed - hahahaha, that is beyond me at least! I have enough trouble with two.
Seriously though, how the fuck is it possible to do it one-footed?