I am going to seal up all of the ends of the control surfaces. I saw this done on a friends of mine aircraft and it cleans up the look and aerodynamics. I layed up a 1/2" foam board with a bed of epoxy thickened with microballons. Once this cures I will sand it flush and apply a single layer of fiberglass.
I added a layer of glass. Once this is cured I will trim the fiberglass flush with the fairing.
Sanded flush today and reinstalled left wing tip. I will seal up every end of the control surfaces.
