Thanks Lowell, I am a fan of K.I.S.S. technology! Clamping the spars together with the garrotte to keep the ribs immobile worked very well. You can't see in the previous pics, but I ran a strip of painter's tape down the length of the spars to note the rib location, which I then used to mark a position line all around the spar. I just left that tape in place. Figured if I lost the position line in the Hysol I would still had a good reference handy. I would add that I tried wrapping tape around the tube at first as a position line, but found it difficult to get perfectly square. Simple solution... just wrap a piece of paper around the tube, align the edges, mark away and remove. -Viola- a perfectly square position line around the spar!