maser

Larry,

I don't glass the trailing edge of the wing where the control surfaces meet. I just put some resin on the back side and sand it until it is smooth. Prior to putting on the glass, I make sure the surfaces, trailing edge of wing and leading edge of flaps/ailerone in this case,come in contact with each other, but still operate properly. I have never had a problem with hinging because the build up is so minute (or at least should be in this case). After I resin theglassI hit it with 80 gritsandpaper until I takeall the "sheen"off or unitl it is dull. Be careful not to sand through theglass cloth.

If all else fails sand to the bear wood on the leading edge of the control surface and just put layer of resin, then sand smooth.

Hope this answers your question.

Boyd.