Hi All, yes, I'm skirting my responsibilities! Busy! OK, this week-s design contest is a sanding jig. Something to help round the leading edge of fins. As some of you know, I hate seeing square fins; namely the leading edge. I find a rounded leading edge just looks more 'finished'. A square leading edge to me, just says "plank" or 'unfinished' So, design me a tool that can be used to round / shape the leading edge of a fin. It doesn't have to be fully round, but something that will take the edge off! Design it to take some sand paper, or sanding film. Design it to be use don 1/4" ply or 1/8" balsa.. Full round, half round, 3:1 Ogive..