Excellent advice Joe. Venting the airframe is right on. I read a thread here where a guy placed his pride and joy in the hot summer sun and the covering material "balooned" up on him. It wouldn't have happened if he vented the covered compartments. I use a 1/16" drill because I'm lazy. Heating the epoxy versus thinning it makes more sense to me. I always worry about what the "carrier" - (lacquer thinner, alcohol, acetone) does to the epoxy chemically.

Bill