Well i finally more or less finished the 500, for now anyways! I took it out on the ice on saturday and i am more than happy at the moment with the power it has. I definatly have to swap my +8 swingarm in. Comes up way too easily the way it is. Let me know what you guys think. Also i can say the myth about the vibrattion is just that, a myth. It vibrates a little bit more than a 250 but its not that bad at all.