Cheers for all the replies!
Dave - Gigging is just a different ball game for some reason! I try and relax etc for gigs so my technique is good, but then I get into and give it death... :/
Seems I am just gunna keep with my powerball, and then get some weights and do as DusheR said!
The elbow on wrist thing seems like a great idea
Keep me in check with doing it right!