I know some are gonna say its a waste of money for 11.1 compression, but I live in California limited to 91octane. I don't mid spending the money on a better quality gas or mixture to maybe preserve the motor or run optimal. Last year I ran straight VP T4 and it seemed to run fine. Now I'm thinking maybe a 60/40 mix with pump gas just to lower the octane a little from the 100 octane T4 is rated at. I did notice the head pipes did not radiate as much as normal. Not sure if that's good or not. I always wear shorts at Sand Mountain, Nevada, and always notice the heat from the head pipes burning my legs. That did not happen when running the T4 VP Race Fuel. Anybody have any thoughts on Race Fuels, mixtures of Race Fuels, and anything related to lower compression bikes and race fuel?