The idea of lowering the ailerons is just to give you a real world idea of what the plane will do by incidence change. If one of my planes balloons a little bit or dives a touch when I cut power Idon't go running to change the engine thrust angle first thing, Idrop or raise the ailerons a little to see what effect that has.
You can make up an adjustable wing just like an adjustable stab is made and play with the incidence all you like.
Iknow from a past build on a Cub that two degrees is a bunch. It just makes me wonder about the WHY of what you are trying to do. Acorrect incidence and using shims would tell you everything you wanted to know. An adjustable system could be a fun teaching tool for students.
Whatever floats your boat!