I think I am somewhere in between the viewpoints expressed by Dave and Eric. On the one hand, Wing Chun is very diverse I would bet some of the things we do in Pin Sun would not adhere to what Eric defines a proper Wing Chun concepts. Yet Pin Sun comes from Leung Jan and has been preserved pretty much intact in Ku Lo village. Fung Siu Ching's line diverged from Leung Jan's line long ago. So it makes sense that their descendants have evolved in different directions. So I can see Dave's point in that who are we to say someone's Wing Chun is wrong or incorrect?
Yet.....there has obviously been lots of "mixing" in some of the mainland lineages. At some point, technique starts to diverge from what most of us would consider Wing Chun, despite whether it is guided by Wing Chun concepts or not. And some technique, while giving lip service to Wing Chun concepts, really doesn't follow them despite what their lineage says. Just because a Chinese guy two generations ago decided to blend some other method (animal or otherwise) with the Wing Chun he learned, declare himself a "grandmaster" and proceed to teach his new method to the masses.....doesn't necessarily mean that what he came up with isn't a bunch a crap, despite what his followers may think. So yea, I can see where Eric is coming from as well. ;-)
In the end is comes down to what the individual wants to do. If someone likes preserving and being part of a tradition of Wing Chun with fancy flag dancing, lots of archaic weapons and animal forms, then more power to him! If someone likes the simplicity and directness of Wing Chun concepts and technique and just wants to do what works for them, then more power to them as well! I see nothing wrong with eliminating some of the superfluous stuff that may have been added in the past if it really adds nothing to effectiveness in today's world. Personally, I don't see a lot of value in spending time on the Butterfly knives. I have replaced them with the tactical folder, which is much more applicable than 2 short swords in today's world. On the other hand, I am not going to start eliminating any of the solo sets in Pin Sun I have learned, because I don't trust my own knowledge and abilities to know exactly what to do away with! What I see as pointless today, I may very well discover is important later! Sparring most definitely does NOT teach you everything you might needed in a real encounter.
Anyway, I think I am rambling now so I will shut up! But good discussion!
Thank you Keith for your leveled headed and unbiased response I am in total agreement with your assessment.