As much as I can't stand the Aggies, I'd like to see 'em try that stunt at Kyle Field

The Baylor Band does that all the time when they are at Kyle Field.

What is it the other private schools like BYU, Notre Dame, Baylor, and TCU do to get more than 60 members? Anyone?

As the above poster mentioned you have to have an agreeement where Music majors are required to spend at least a few years in the Marching Band.

The 2nd part is agressive ...

Little Jon and the Eastside Boys

Our band has always played loud right before the snap. Its perfectly legal, you just can't perform during the actual play.

The marching band only requires music majors to be in for two years, so its not a 4 year commitment as a poster above alluded to.