Can I get a quick refresher on wet sanding? After reading the entire thread I am of the belief that this may be the most critical aspect of the process in order to get a smooth glosssy final finish.

So, two coats and wet sand with 400 or 600; 2 more coats and wet sand with 600, 2 more and wet sand with 1200-1500. But how do you sand? in one direction? circular? And how do you know when you are getting close to going through the most recent coat? When do you stop?

I bet these are basic questions but it would help to know.