OK, I decided to just go with the Tower Hobbies fuel brand, 10%, and if it isn't working out for me I'll try some other fuel mixes. I think I'm ready to order, I have just two questions:

1. Latex Foam Rubber: Will I need it? The site says it protects the engine/fuel tank from foaming, and it protects the radio gear. Will it be a good investment? I'm only looking at 2.50 for 8"x12", and 1/4" thick. There is also a same size, 1/2" thick sheet; which one would work better? I can see 1/2" working better, but I don't know if it's necessary for my size plane. Which should I pick, and should I order 2 or 3?

2. Epoxy selection. I have a 1. oz. bottle of Medium CA on my list, but there's 6 minute and 30 minute epoxy available to me. Which should I buy? Is 30 minute stronger, and if so, will I need that kind of strength? Someone at my LHS said awhile back that 30 minute epoxy is weaker than 6 minute, and is only for show (he said it gave a glossy finish). Which should I get? (By the way, I'm getting Tower Hobbies brand 4. oz, does Tower make good adhesives and will 4 oz. be enough? I think so, but just to be safe)