Right and Left?

[user]

I just recently got my powerball and it nearly takes up all my time! A great invention! I have mostly been using it with only my right hand though. I very rarely ever use my left will this actually cause a very odd-shaped top-half of my body? Just wondering!

Mustafa

[user]

I often use left and right at the same time :D, since i've got 3 PB's :P.

RuuDiE