Thx for the suggestions so far.
THe Extra 300 has ailerons going all the way to the fuse. So does the foamie (Airfoilz). I tend to not go full elevator much and generally don't do dual rates, but I've been doing RCCA combat lately where we do what you said and turn down elevator till it stops snapping. Maybe it's the influence of that and how the SSC combat planes turn on a time. But flying those 2 planes made me feel like my turning radius is smaller than before.
I"m very interested in the turburlator strips just to try it out. Not sure I"m visualizing it properly but I place the clear tape down and fold it so there is an amount sticking up in a line?