I don't care what kinda 'pixie dust' is sprinkled on any given shaft...whether it be an aftermarket laminated, or a cuemaker's custom shaft...it is only going to be as accurate as the person stroking it!
While I have nothing against an aftermarket laminated shaft, I just really prefer a very stiff playing shaft, and so, seek out those makers who have a reputation for making such. A stiff shaft will tell you pretty immediately if you are having a stroking issue or not...they are not very forgiving, in that respect. I feel my game has improved greatly as a result of this philosophy.
It really comes down to a matter of preference. I prefer a nice ol' fashioned solid wood shaft made for my cue. Let's face it, after a certain point, it is no longer the cue (butt or shaft), but the person's ability, or lack thereof, to put it to it's best use.