twoblink, San Da is a very "hard", i.e. physical, style. If taught by Chinese instructors, I would anticipate a very militaristic environment. (They don't kid around--no sarcasm, no playing grab a**--and smiles can be seen as weakness. This can be hard for some [gee, I wonder who?]).
Good stuff. Reminded me of one of my favorite instructors in Hap Ki Do, "[u]se whatever works and call it Hap Ki Do."
The problem with any pj fighting--boxing, JKR, kung fun, whatever, is that you must close with the threat. You will get hurt, if you accept this (you may have no choice) you will go far.
Kung fu should be part of gun fu. Anything that hardens your resolve will help and keep your abs buff.