Pitch stabiliser for RC wing.

I'm just doing my homework and don’t want to reinvent the wheel. Anybody done any work on a pitch stabiliser ? A flying wing derives its pitch stability from a combination of reflexed airfoil. washout and sweep. This is inevitably inefficient and a pitch stabiliser is a way of reducing these parameters.
I will be starting from scratch as regards the Aldrino though I have a lot of experience with RC gliding.