Now Paul - Chip Hyde has an awesome 3D Machine, though that guy, and the other TOC competitors, can make a trainer be an awesome 3D machine!
I just stated that you would want to change the foil to have less of a blunt leading edge, and IMO bipes don't make good Fun-Flies.

Yes - SIG has the Ultimate Bipe Fun-Fly, but its foil is different in comparison to other Fun-Flies.

Billy - I order my wood from Lone Star, and yes I would order the contest grade for the 1/16" sheeting. Last large order I got from Lone Star, the 1/16" x 3" balsa sheeting was a rock! Funny that the 1/16" x 4" balsa sheeting was real - real light. If you ask for contest, then you'll have a better idea for what you are getting. I don't use contest through-out though.
Kevin