As it shoud, so does football, basketball, and tennis. Sorry @Bonesaw I don't think I am understanding what you are asking. There are many similarities to baseball and softball for sure. And some similarities to baseball and softball pitching, yet, they are different and I know you know that. Brush is part of softball because it is underhand. I have never heard brush as part of baseball in anyway at anytime. So not sure how baseball presents a problem to the brush idea. Again, not following what you are asking or saying...
Not surprised here honestly.
My question is how does a guy like greg maddox have pin point control, throwing overhand when softball is really just throwing underhand.
I think its because his drive/FSR mechanics and "arm circle" were so consistent.
This makes me tend to agree with armwhip that brush is merely a byproduct of good mechanics.
I think it is much more beneficial to focus on the causes than the result.