I just purchased a BK2. I had been watching a few tv tourneys, and noticed that 3 or 4 of the players were using the BK2 as breakers. I figured if good enough for them.........
When I got the cue, naturally the first thing I did was rack 'em up and fire! My first stroke pocketed four balls of a 15 ball rack, with no feelable vibration.
Being the lazy guy that I am, rather than pulling out my player, I went ahead and shot down the remaining balls with the BK2. I must have worn my smile around for four or five days, as I LOVE shooting with this cue. By the way, this cue does have a hard leather tip on it, not phenolic.
I am quite happy and excited about the way my cue hits, and will probably NEVER sell it.