break cues
I used to break with a 21 oz. cue, but have gone to a Shurtz 19 oz. sneaky pete with a SS joint and a hercules tip. Personally, I think it breaks just as good as a BK, but I have noticed many players improving their break with a BK, especially with a little more power to it.
My break cue costs $190 with SS joint,
$170 with other joint.
I think any cue meant for breaking, with a good balance (remember that bad balance can introduce flaws into your break), and a hard tip will do just fine.
Weight transfer in the break feels and performs better, IMO, when you feel the weight of the cue in the middle (between your hands) and not at the butt end of the cue. It has a more even feel, and provides more accuracy on the break.
A good break stick can mean the difference between making balls on the break or just rolling them up within 2 or 3 inches in front of the pocket. And if you are playing the better players, that makes the difference of winning or losing the game because they will run out on you if you don't make a ball on the break. At least, that is true at the level I play at.
Breaking good is almost an art form.
I have seen big muscular guys that break like a sissy, and small light weight guys that break like gangbusters. Learning to break the proper way and the proper technique is very important. I am only 5'7", about
158, 55, and I have people tell me all the time that I break as hard as anyone in town. I do exercise though, and work out with free weights.