Yeah, that's a thought, I could wet sand now. But, I wonder if I put two more coats on, might they in effect, cover up the tiny particles on the paint surface now, or at least, come close to covering them so that if I did have to wet sand later, there would not be as much particle "height" to sand down?

What grit sand paper should I use, whenever I end up doing it--1000, 1200, etc?