I finished my lower gear leg intersection fairings a few months ago, I used the clay method as the plans describe but found it difficult to make smooth. The results turned out pretty good but there was a lot more filling and sanding than I would have liked. Now it is time for the upper fairings, is there something other than clay than can be used and easily shaped? I was thinking maybe plaster or something that can be sanded to its final shape. I also see that vans is offering these fairings now, any experience with these?, are they worth it?