Im ready for more power and wondered the downside to a 12:1 piston. I was ready for an 11:1 till I talked to the bike shop and he suggested the 12:1. Im deffinately using the stage 1 cam as he wants $120 for the machine work for the head. Plus springs. So a stage 1 from a supporting vendor will be in order as for the piston I will get from him as he will hone and check the cylinder with the piston purchase. Im worried about the rod I guess with the 12:1 and which is the best piston for the money? I plan on trail riding and a couple trips to the dunes. I can take a better gas for the trails also. Thanks for the help.