Don't buy cen. There radio equipment is worthless and they don't have much thought into their designs especially for racing. If you have any abnormal problems with a t-maxx (aside from the reverse and one other flaw in the trans) then you aren't doing something right. With any nitro you get its going to be a lot of maintence and if you don't maintain them your only going to have problems. If you get a cen or any other nitro keep them clean and look them over at least once every 5 or 6 times you use it.