Re: Evans new Heavyweight snare head.
The Controlled Sound X is thinner than the ST (12 mil with dot opposed to two 7.5mil plies). Maybe you're thinking of the Emperor X or Black X which are both two plies of 10mil with a dot.
If you're breaking heads like that, you might want to check your technique, the angle of your snare, or try replacing heads more often? I'd wager it's that second one though.