I finally got around to trying West System's #105 finish epoxy..

All I can say is..GREAT!

This is the easiest sanding epoxy I've ever used. I didn't squeegie it well enough on the first 2 or 3 surfasces I tried it on, and was really dreading the chore of sanding the excess. I was pleasantly surprized at how well it sand. It cures to the touch in just a few hours, so it seems that you could do both sides of several panels in one day's work, then sand and finish the next day.

On another note:
The attached picture shows why this is a good day for this kind of work. A strange sight in a suburb of Dallas, Tx.
Johnny

BTW: I used the epoxy straight out of the can at room temperature.