Thanks guys, the Future won't be the last coat. I always seal my regular paint with Future before decaling, and just wanted to see if anyone knows of bad effects between the two. I still plan to use a dull coat.
Reasoned: I haven't used MM gloss coat, or any MM clear coats, but I will give them a try. I usually just use testors Dullcoat, or regular Krylon dull clear.