I have painted a few bike frames with a spray can which always look nice but are not durable. I was considering using the Preval system with the premixed Duplicolor Paint Shop product. I have 2 repaints to do, a 1979 Raleigh Competition GS and a Cinelli Centurion, both silver. So I figure I could use the same paint for both. Has anyone used this specific paint for a frame? Happy with results?