If they're classic M it's .40-325. I don't like the new TA's much for the heat we've been playing in but the Sharks and X-Rocks seem to hold up ok. Tatoo's seem to start hot but die pretty quickly and everything else I've seen sounds like a sock full of sawdust. Don't know about Evil or Guru but I assume Evil's will perform like X-rocks and Guru like Tatoo. JMO
yall are lucky that you can go buy them on your own.. Here in abilene our Association special stamps all the balls and charges $6 a piece or 60 for a case of 12 you cant use any ball besides theirs.
But on a side note im interested anyone have any good leads on getting some decently priced balls for BP.