Hello all,
I am not sure if anybody else tried this on UCD3D 60, but I decided to cut off the wing tips. The ailerons happens to have a rib just at where the wingtips begin, so I cut the ailerons at the rib so they are the same length as the wing.
High alpha flight is a little better. I can get it to do harrier for a while sometimes. Wings will rock a little; but as long as I correct it with aileron before the rocking gets going, I can keep it steady.
Snap roll is definitely much better: it actually snaps like a snap roll now.
Waterfall seems to be better. Consequently, KE spins are a little faster and easier to execute.
It doesn't seem to affect any stability. Still doesn't stall, and lands at walking pace.
Overall I like the plane better with the wing tips cut off.