Malcom, not a major problem, probably me anyway. Just odd I managed it on the same one.

One the whole I am very happy with how well the wing has gone together. I think it is the straightest I have built to date. (My GP extra has a noticable S shape in one trailing edge!!)

Philly, and I spose everyone, I didn't use the jig tabs, as I wanted the middle supported. As I had two complete lenghts of the 1/4x3/8 left over, I put one under the trailing edge, and pinned through the trailing edge and the stick into the board. I then pinned through the spar into the building board. The second stick was slid under the front, and pinned in place (not to the wing, wanted it left on the board when pulling the wing off). This made the wing rock solid, and I could apply plenty of presure to ensure the glue stuck without having to worry about putting in a warp.

For the trailing edge sheeting, I again pinned the trailing edge to the stick length, and pinned the spars.