My 66 has 17 year-old enamel paint which is still very presentable, but through the years the body work on the passenger's door and rear quarter have began to show their age and with a black car old bodywork is usually unforgiving after this long. My question to you body afficioanados is, can I shoot my car with a heavy filling primer directly over the existing enamel and rework it without having to strip it down completely again? When it was done 17 years ago the process was done as follows: Rust was stripped to bare metal, the rest of the car was sanded down to a workable platform. The entire car was shot with a heavy coat of DP 40 epoxy primer. Then it was shot with a heavy coat of K200 surfacing primer. After blocking out the body it was then shot with black enamel which is still what it has. It's not show quality now but I would like to know if I can shoot a few more coats of K200 (sanding inbetween coats of course) until I get it back to where I want it and then reshoot another enamel or BC CC topcoat? Is this normal procedure or what?