One thing that bothers me about this discussion is that it seems to boil down to:
SLT and CK contain the basic mainstream WC mechanics, structure, posture, ...
BJ breaks the rules, but only so far. It's still WC. You have waist twisting elbow strikes, crouching / level changing, bending at the waist, blocks/redirections using both arms instead of just one, ...
This seems contradictory. BJ not using WC mechanics, but still WC, therefore WC mechanics.
So there seems to be a three tier categorisation of technique:
- SLT and CK mechanics
- BJ mechanics
- The outer darkness and futility of every other martial technique, effective or not
Don't really accept this, nor assuming that if I did that I couldn't find other movements outside the standard forms and usual WC curricula that might fit into the first, or certainly second category. Since BJ seems to be stuff that isn't really Wing Chun, but that someone must have liked for reasons not made clear.