So far I have yet to find any brand of numbers that actually stick down onto my plastic. I've tried a few el'cheapo number sets that cost around $5 US and they barley hold down by themselves. Especially on that dam exhaust side, any tips for sticking them down here?. It would also be nice if I could get numbers that actually last for more than one moto. What brand/type have you lot found to work good on the yzf's?