Just paid 9.99 plus 7.50 shipping for one of these stupid clamps last week for a trx 2.5 sleeve real upset about that now but what was I thikning I should know better than that. Anyways now that I read here I have cancelled the order I had for a 3.3 sleeve CLAMP not pincher like this liar states and I reported his item to ebay as this kind of crap doesnt need to go on and to take advantage of the uninformed like myself.

Anyways after reading here I will be sending my sleeves and pistons to either rayaracing or osrocketracing thanks for the info.
I did see that I could buy a setup from rayaracing and I may look into that but for the 450-500 it will cost I could buy alot of traxxas 3.3 engines for that :P though I did more so want to learn how to do it for myself as part of the hobby and plus being that I want to take up machining as I grew up with my dad owning a bridgeport and a clausing lathe in the basement I would like to get back into machining like I did a little of when I was a kid.