A couple of years, I bought a NIB Ajusto-Jig for $25, including the fuselage jig. It looked sort of intimidating to assemble, so it got stored. The other day, I decided to really see how it works (the wing jig), and I was impressed. It wasn't hard to assemble, but since it is so long, I cut 6" off the ends of the two aluminum base pieces and off of the pipes that the uprights slide onto. I used it to frame up a Ringmaster wing (the RSM kit), and so far, it is dead-on straight. I really like the ability to rotate the wing, although I can't go 360 degrees, because I wasn't able to shorten the rods (too hard for my hack saw, so I'll ask my friend with a torch to do it for me). I haven't had to go through the drill of cutting the rod holes in the ribs, since the RSM kit already had them, but it shouldn't be too hard, especially if the wing is constant chord. I think the Ajusto-Jig will be helpful, although it DOES take up a lot of space. Glen