Those Eastons have plastic shafts, the theory being that if you break the shafts, you replace them by unscrewing the beads. The sticks feel ABSOLUTELY terrible and they also feel like you're the drummer for Metallica. BOO. You'll notice Easton didn't really look into drumsticks until Lars came around.
Sticks break, it's the nature of the beast for sure. However, striking cymbals so hard that they "overspeak" is exactly like blowing into a trumpet as hard as you can and expecting the trumpet to work as intended.
If your playing is any sort of consistent, then your sticks will break at an expected rate. Even if they don't visibly crack, the inside will fracture. The tone of the stick changes at this point and it becomes fairly obvious.
Rocking the shoulder of you stick at a 45 against your plates not only cause a premature death in your cymbal, it will also have the same effect on the stick.