It is amazing all the work people have done in this thread and it is all very informative. Let me make it clear I am no painter and do not work in the industry just been painting planes since 1973. (No comments about age ok.) first started with dope, terrible stuff hard to work with and pulls away from the corners just bad stuff. Then went to home hardware type of paints not very successful. This looked good and work great for one season and down hill from there. Tried many automotive type paints and was hit and miss and most of the time ended up heavy. After many planes and combinations you guys have come with the same conclusion that I have. The only thing that I can add is to use 3/4 oz/sq-ft. Used 1/2 oz cloth difficult to use, damages the weave very easy and find it uses more resin to fill because the material is not as tightly woven as the 3/4 oz cloth. The latest I can come up with is exactly the process as described earlier in the thread, and is the lightest. Ok now when it comes to painting all my weight saving down the tube . The only way that I have been able to win is from this point by using Stits. One coat of their primer, for the connection to the epoxy base. Then 2 coats of whatever colour the plane needs to be and then one good coat of striping or fancy striping or whatever looks good. This is the lightest I have ever been able to do it. You can still see the weave, but it is sealed and easy to clean no wrinkles or edge coming loose. And I have planes that are more than 5 years old done this way and look as good as the day they were finished. But are actually getting better with age because I will wax then twice a year and they are starting to shine. Like to see some pictures let me know.
There is a special clear coat that Stits supplies that makes it look like glass and very shiny. It needs to be put on by an expert because it needs to be put on just wet enough for it to blend and not run. Tried it it is heavy and does not add to the performance of the plane except look like a show car.
Sorry for being long winded just trying to help.