dont ya just love it companies market brushless first off as maintenance free then pushed performance soon they will be selling upgrades etc etc. kinda stuff our selves up. can never be happy with what we have. what was wrong with 4.5 turn motors? sure go faster but if the guy next to u runs a 3.5 aswell then ur really no faster. so why not a gentlemens agreement? save us all money. i think were all a lil crazy