RE: How many guys....
Jeff, you defy all logic and demographical boundaries. There's no way to quantify the GMMAT phenomenon - it's like the Northern Lights or Stonehenge.
I guess I should qualify my group A, B, C classifications - being as P.C. as I can be - let's just say that Pennsylvania has a "unique" set of circumstances, and hunting around here is quite different than what a lot of y'all are accustomed to.