Basically, my problem is brushstrokes. Not the three dimensional kind. My finishes are smooth enough, but if you look closely (or not too closely) you can usually see that the coverage isn't even. I have sort of worked around this problem on a few test projects, but the solution seems to be layering paint on until it's distressingly thick. So I think the problem may be my "base coat." I'm not sure I'm using that term right, but basically the first layer of whatever I put down doesn't seem to cover evenly. I've tried using primers and various thicknesses of layers of my intended color, but can't seem to get things to where I'd like. When you guys talk about base coats, what do you mean? Is the intent to create a layer of paint thick enough to obscure everything underneath? Are thin layers enough to eventually obscure everything, even though they show through so much?