.........start a thread that talks about the technical differences between WSLVT and everyone else's Wing Chun in the Ip Man lineage and why they think those differences could not be due to WSL's own refinements or innovations of the system based on his own talent and experience.
Unfortunately, you don't see the improbability of your theory, or the complexity of your request.
I don't know if others can relate, but I would liken it to a translator trying to "refine" a mangled result from Google Translate.
Despite my sufficient experience and bit of talent in translation, what is generated by GT often barely resembles a coherent language, and trying to turn that into a clear and accurate rendering of the source text would be a nightmare.
It would take at least double the time, be frustrating as heck, and would require more complete rewritings than "refinements". Better quality translation would come from just working straight with the source text.
Without a complete and comprehensible source text available, refining a GT result would be impossible or result in something almost entirely new.
But, WSL was coming to YM to learn how to fight, not to repair YM's martial art or create a new one out of something that didn't work for him.
If what YM taught him was as confused and contradictory as much of what's out there now, I'm sure WSL would have wasted no time in moving right along to another style.
Now, I sense someone might want to stay with the translation analogy and say different translators may come up with different wordings that are all still accurate and acceptable as merely differences in stylistic preference (though some could also be inaccurate due to misunderstanding the source text, or missing chunks, which could also lead to misinterpretation of the bits the translators do have).
The analogy doesn't quite carry over here, though, because making changes to the VT system (YMVT) would be akin to making changes in the source text, not just the translation.
If changes are made to the system, it could very well result in a break, especially if one does not fully understand the complete system to begin with.
A concrete example of this we have discussed in the past is adding footwork to daan-chi-sau.
There is a reason seung-ma / teui-ma stepping drills are trained from pun-sau with both arms in contact.
Teach stepping and turning with one hand in DCS to a beginner who hasn't learned pun-sau yet and there is bound to be all sorts of problems; errors in distance, facing, angles, and footwork that will be difficult to correct and easy for an opponent to exploit, like over-turning.
Stepping in DCS is a system defect. This is putting the cart before the horse.
Other examples of "cart before the horse" appear in fighting strategy, such as using secondary actions (e.g. paak; jat) as primary actions. Doing this when the primary action is available is superfluous and violates all three of the core VT principles; Simplicity, Directness, Efficiency.
It is not just the understanding of the complete content of YMVT that is important, it is also sequence- and timing-dependent. Break the sequence and timing, break the system, break the functionality.
It is so incredibly unlikely that WSL's logical, consistent, and orderly version of the VT system would have been created by him from the illogical, inconsistent, and disorderly mess that has become mainstream.
It is also overly complex to explain in writing all that is broken from a WSLVT p.o.v., including the hows and whys, and would not likely be fully appreciated without readers experiencing the alternatives firsthand.
Many things can be argued in words but undeniable and irrefutable in practice.