I have an 109" Extra with an all up weight of around 37lb and a wing loading of around 36oz/sqft. The engine is a ZDZ120 swinging a 30x10.

Any ideas how the 3D performance may be (assume decent surfaces & deflections)?

Not very good.... 37 lbs is waaaayyy heavy for that size of airplane if you want to do 3D

Man, a plane that size should be like 25, 30 at the most. 37 is ridic...... I dont think u may see much 3D performance