Gulyassy
I have tried a lot of cues. I try cues more because I look for new things to try (I'm the same way with computers). My problem is that I can break well one day with any cue and poorly the next with the same cue. I believe that I am the weak link in my break because I do not put the same stroke on the ball or concentrate enough. It is like the karate chop through the bricks. You can prop a concrete block up and whack at it all day, but until you center your force into your action, you won't break many correctly. It has to do with timing, concentration, and accuracy.
I know some pretty wiry, stringy guys that aren't tall but they can break so hard it surprises you. You have to deliver the cue to the cb the right way to get this kind of break. That said, I know people that break well with lots of cues, but for my break, I've had only one cue I like.
I bought Mike Gulyassy's break cue off his babyproshop website last year and I truly believe it is the best break stick I've ever tried. I let my teammate try one and he ordered one within a few weeks. After that, I figured if his break cues play that well, I'd buy a playing cue from him. After one night of playing with it, I never picked up my Schuler again (and my Schuler was previously the best hitting cue I'd ever played with. Mike's sticks have a feel to them and they could probably play good pool by themselves.
For a bar-banger like me that doesn't always break well, the Gulyassy is the best I've found. BTW - I'm not talking about sledgehammers either. These are Mike's break cue that he makes and sells now. And the cue work is stunning, beautiful.
I have a Mezz PB2 I want to sell sometime, sold a jericho stinger within days of buying it, didn't like the predator, didn't like icebreaker tips so won't buy the cue, didn't like the x-breaker at all.