Cephalopod
Green Belt
I can see that you don't like the idea of "cross training".
Personally:
No matter what range my opponent is at, I want my instinct to always be the same, to bring me to a range where I am the most effective. If he is trying to keep me at distance, I will try to close that gap asap. I am more trained at close range, I can do the most damage at close range
I agree with Mook that there are only so many training hours in a day, but I will add this:
If I mix my Wing chun training with to much sparring at tap-tap range, what will be my instinct when the SHTF? I expect that the brain freeze will be prolonged by trying to decide what distance I want to be at.
I love to cross-train but to me that means to scrap with someone of a different style and to immediately close the gap so the he has to play my game, not the other way around.