My experience is that a nice finish starts with the prep/primer, not the clear coat.
- put a coat of primer on the body and wet sand it with a fine grade sandpaper to get it as smooth as possible
- wipe the body with tack cloth to get all hair/dust/etc off the finish (washing with mild soap/water is good too.)
- put several 'light' coats of paint on and wet sand in between coats to eliminate any bubbles or imperfections. Keep putting 'light' coats on until you have complete solid coverage of the body after it has been wet-sanded (ie. no primer or body spots showing through)
- put a final 'wet' coat on (slightly heavier) for the final touch. This should be heavier than the prior coats and look quite glossy when done. The danger her is in getting 'too much' paint on and causing runs. Once this coat is on, cover the model and let the paint totally cure.
- after that, you can assess the final finish and determine whether or not you want to polish and/or clearcoat. Some guys can lay the final layer on so it looks perfect. Unfortunately, there are so many factors that affect this, that most people will rarely ever figure it all out. Sometimes I get lucky, but other times I just get out the polishing kit.
- Some guys like the looks of polished 'paint', and some like the look of a clear coat that's been polished. They are slightly different.
Hope that helps. The cleaner you keep your surface *throughout* the paint process, the better the end result will be...
M.