Paint
I don't have a twister - but I have the 7 piece kit and so far have used, ZAP, Marbalizer, RP Sheerer (Severe), Skirmish and Celtic - these may different to the stuff you have in the US, but so far I've only had problems with one batch of Celtic - this may of course have something to do with the fact that I can change my back to best fit the ball though..