Think of your body as a 3-stage rocket and your cue as the payload.
The first stage engine is your lower body – legs, hips, back. They accelerate your entire body forward to a certain speed. The second engine then fires – your shoulder, upper arm and forearm begin accelerating forward. At the last split second before impact, the third stage fires. Your wrist comes forward and your fingers tighten their grip on the cue, snapping it forward at maximum speed.
Bending the shaft on the table won’t rip the cloth. Bending the shaft is mainly the result of individual technique. Mike Sigel broke that way because he was afraid of hitting his knuckles on the table during his stroke. Doing that on a Brunswick table will mess up our hand! Charlie Bryant’s break freaky. On the break, his stick goes level w/the table during his follow through. I’ve seen it personally. He controls the cue ball too! The cue ball bounces straight up and down.
I’m sorry but if you watch just about any professional 9 ball match, so long as players aren’t using the soft break, they are using a variation of this break form. The bend in the shaft is caused by follow through + the rising of your body to dissipate energy. Even players who break off the rail get that bend as well because they’re hitting through the cue ball and lifting their entire body, thus, raising the end. The bend itself doesn’t do anything, but it’s just a common result.
I just don’t be-leave that can warp it i have seen people break a shaft on the break but that’s it i break with my playing cue every day and other than i half to maintenance my tip i have had no problems in the last 10 years at all if you cant break with your playing cue you should get a knew cue and if you bend your shaft like that on the break that is poor technique and you should work on your basic approach to the break .