has anyone done a conversion on the gas tank from the o4-o7 to the 08 model? since the 08 uses like a tank cover i like that better since if it gets scratched i can always paint that. my tanks has some scratches that just piss me off looking at them and how clean the rest of the bike is. was there any changes in the frame from 07 to 08? or waht can i do to my tank to get it shiny and scratch free again? thanks!