I've had the necue prime m 12mm and was a decent shaft. There were a few shots were there was lots of vibration though. I used it on my predator butt at the time. From what I've heard many others discuss here is that the whole becue shaft and butt, it plays much better. Haven't had the opportunity to try a whole cue from them.
The Meucci carbon pro plays very similar to the regular wooden pro shaft.
