Fascinating, I really enjoy trying to understand and visualise whats going on aerodynamically. All I will say though is that no matter what theory you subscribe to it HAS to match reality.  Now, i don't get to see many full size go ,into stall, but plenty of our models do quite often. So, firstly when you talk about 'mechanical twist',  i guess you mean what we call 'Washout'. secondly, ask any spitfire pilot, their eliptical wings most certainly do not stall evenly across the span - in fact the spit is notorious for bad tip stalling and most models of it incorporate generous washout to alleviate the worst of it, and it affects big and small models alike, Reynolds numbers or not!

Still, very interesting, maybe i'll learn enough to design better planes eventually.