Show car or driver, what's the difference? Would you intentionally do a less thorough or "perfect" job on a driver? Of course not. You'll do the best job that you're capable of doing.
As for your question, I've never painted a car. Can't help you.
1950 Chevrolet 3100 (Ol' Roy)
1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)