im just trying to make up my mind about a mill to put in my truggy.. i have had good luck with the rb in my buggy and i know they can get at least 8 gallons on them i am lookin for a mill that can do the same if not better that is as easy to tune with minimal maintenance.. so im stuck between the RB, one of the older RB WS7-2 or 3 and the Novarossi p5x/xs..