I've also always been a fan of pitchers that throw nasty heat, sometimes referred to as fireballers.
"Fireball Express" is one of my favorite Good Rats songs. (cue Stevethunb)
Peppi Marchello, the lead singer of the Good Rats, went to St.John's Univ. on a baseball scholarship.
During the show he uses a baseball bat as a prop, air guitaring with it. Sometime he smashes a metal garbage can full of rubber rats with it.
So my name is partly a tribute to one of my favorite bands as well as a reference to one of my favorite aspects of baseball.