I started with krylon and have done them with Duracoat for the past several years. Prep is the key! Make sure it is thoroughly degreased as paint won't stick to finger prints or face oils. I moved to Duracoat as I can put it on with a spraygun or airbrush allowing for more detail than a spray can. I can also mix colors to get something lighter or darker. Each has pros and cons. Duracoat can be handled in a couple hours but is like concrete and doesn't reach full hardness for a couple weeks. I've never used the top/ clear coat with anything I've done and never had an issue. I've done a bunch for members here, search my screen name and some pic galleries should come up, if you see something drop me a PM.
Good luck whichever way you go, and if you don't like it brake cleaner will take it off or the easier way is a sandblaster if you have access to one.
