Dave, I agree with the majority of what you say except these -
"I am sure that one would need to adjust ones fighting strategy depending on the environment. For example you would need to modify your approach if fighting in the jungle, a snowstorm or on a parking lot filled with broken bottles and glass or on a sandy beach. While many of the core concepts would remain the same the application of some of the “techniques” would need to be adjusted according to the surroundings. "
This I believe is not a matter of changing the art, unless of course you ONLY fight in one of these territories or environments. The idea is adaptability and the mistake is trying to adapt a system when you should be working on adapting your approach. If I am fighting on a parking lot of broken glass then I dont want to go to the ground, so I dont tackle the guy, this doesn’t recquire a change in strategy so much as tactics. this to me is adaptability of the individual and not the system.
“But, if YOUR Wing Chun does not have what you need then explore other arts and incorporate them into your art. Remember our art is one of concepts and you should be free to explore not be limited to a set pattern”
I think if your art doesnt have what it takes to cover all of your bases why bother unless you have an aesthetic interest? For example, if I wanted to study for sport then I would go to a sport type art. If I wanted to graple, I would go to a grappling art. If I wanted to perform I would go to performance type arts. If I wanted to defend myself I would choose an art that covers those bases. For me wing chun is the complete deal, and I dont need anything else. If your art doesnt cover atleast most o fthe possibilities when fighting (obviously most arts dont practice fighting in a swarm of insects while being attacked by dogs and jumped by martians, specifics aside most environments can be generalized for self defense purposes since fights tend to work ion a ‘micro’ scale instead of macro.) then maybe you should look at something else or look to other practitioners of the art for what you are missing?