That's the first positive thing I've heard anyone say about brag magna. I am learning that screwing up your workout is a good thing - whatever you are used to, you adapt to, so to grow you have to keep doing something new. If Crap Booya is a different workout, you will see gains somewhere. You would also see gains from a spinning class.

I'm always ragging on the latest martial art, though I really have no backing / reason to.