I use the RCBS trim mate with the reamer tool its works ok, but what works better is a Hornady chamfer tool in a drill or mounted to my trim mate, it is super sharp, cuts really fast with minimal pressure and leaves a nice taper in the primer pocket, I find it makes it easier to set the primers as there is not a 90 degree hole any more, I was finding with a sharp primer pocket the primer would shave brass off the odd pocket and then that would jam up my primer seater in my progresive...I even taper my non military crimped brass for ease of primer seating...
A friend of mine has the RCBS primer pocket swagger, I have used it and it works very well but still has a very sharp edge and that material that is jammed out of the way is still stuck in there...
What type of reamer are you using and why don't you like it?