Hi Jan,
Gene (Gray Beard) emailed me and asked me to tell you about the way I glass my planes. I use the method and materials I read about here-
http://home.mchsi.com/~jahuntley/help/help.html#Tip%202 and have always gotten excellent results. Basically it's using Deft brand brushing lacquer to bond the glass cloth to the surfaces of the plane instead of epoxy (messier and could be heavy) or water-based polyeurathane (slower drying, can warp sheeting). This is the only method I've actually tried but I can't imagine anything being easier or more foolproof. You'll want to do it outside or in a well-ventilated garage but that's the only real drawback. I added baby powder to the brushing lacquer for the last 2 coats on my latest project to fill the weave of the cloth and that worked great. I'll attach a couple of photos, one of the cloth going on the bottom of the wing and one of the completed plane. I use half ounce cloth and since the lacquer dries rock-hard I get a very tough and ding-resistant surface to paint on. Best of all, it adds very little weight since most of the stuff you brush on just evaporates away. Give it a try, I think you'll find it very easy to do and you'll be happy with the results.