Mike,
I'm disappointed that USSSA did not switch to 375/.44 COR. Oh well.
As far as the league I referred to, I play in and also informally assist the Commissioner (which was my job the past 2 years) in a men's, slow pitch rec league in Atlanta. It's a private, slow-pitch league, much like a church league, and is about D or E level (or worse), though there are a sampling of B and C quality players. None of the teams play outside the league. VERY recreational, though some players also take it quite seriously. We use most of ASA's rules, with some variations -- I know you probably wouldn't like the variations.
Steve