i have had 2 boosted m8s this year 1 with pump gas and 1 with race gas, dont buy the pump gas kit i think its a waste of time after you rode a race kit at 12psi, the 6 psi will feel like a stocker after that. imo. had buddies with m1000t also and they were alot more finiky as compared to the m8. the 09m8 with race kit from bd would be my first choice, mine ran flawless with no adjusting needed period, just pull the rope and ride.