: As long as the weave is buried you don't need more fill coat. What
: you need to do at the visible edge is to feather the edge of the
: second layer of glass. I usually do this using the random orbit
: sander until I can't feel the transition with my fingers.

If you sand into the glass edge you'll see it, if all you're doing is sanding the epoxy that's fine, but it's awfully difficult to feel the difference when you're doing it.

If you're painting the boat it doesn't matter in the least.

Bill H.