I just did a PB SSR1 on a polishing pad with a Cyclo then EX times 3 on an silver blue 1958 Corvette. I was looking real hard at RMG before I applied EX but I using EX the first time I wanted to see what it looked like without any help. My questions are: How well with EX bond over the top of RMG or will it bond at all? What will topping EX with Natty give me in the way of looks? If I top EX do I have to remove the Natty prior to adding another coat of EX or will EX bond to Natty? What would be the average durability of EX over a clean surface?