If you're referring to those with previous ballroom dancing backgrounds, well, that's not what we're talking about. We're talking about those who have been trained, which is part of the reason for this discussion--what defines "ballroom salsa" and "street salsa"? It seems like to this point "ballroom salsa" carries the idea of those who have been trained at a studio, nothing more--NOT someone who comes from a ballroom dancing background.
I've taken lessons at a Ballroom Studio, but with a teacher that doesn't do Ballroom (moot point) and is teaching NY on2: that's not ballroom salsa. On the other hand, if you take a couple lessons at your local club or sunday morning near the beach or whatever ... but the teacher has a ballroom background and teaches/dances a certain way, then you might be learning ballroom salsa.
Argh! i don't even know anymore what we're talking about!.
I'll just follow advice and go dancing tonight!