No, I did not wet sand, Just layed down 2 thin coats. In places where I had roller marks, I just kept going back over it until the marks blended out. I used the low odor mineral spirits which dry alot slower so you can re-work the whole car for like 15 minutes, using medium-thin paint.

As an aside, I have touched up a few spots on the edges with spray can satin and it blends right in with the rolled satin.