A little trick i found when i was motocrossing, go out in practise and let them pump up abit, then come off the track and let them settle down before goin back out, if you get it right you wont get anymore arm pump that day. Seemed to work for me, Jonny
get peice of wood same length of your bars is normally good, drill a hole in the centre, tie some rope through and leave about metre and half dangling then attached something like a brick and roll the rope up by twisting the piece of wood or metal
kills like but thats what all WC people do.. seen it in mens fitness marc beaumont was on about it.
Cheers for the advice guys, im gonna be testing out some stretching and massaging techniques at wharny this weekend to see if that helps. Oh and Jammy you know i will just show you up at the gym haha