This is the Dirty Birdy wing. I will put some 0.010" G10 sheeting about 1/4" wide on the top and bottom of the trailing edge of the wing that will cover the rest of the gap but you can see there will be no gaps for adverse effects.





However, could it be possible that it is too clean and not enough drag is created that keeps the tail down? I'm going with the wheel or excess fuel issue because it happens just as the stall occurs. I'll try to get some video.