Yep, Terry, that is a high-tension moment as the wings slide in, you are checking everything - and praying to the proper authorities who oversee these things - and the spars all go into place and line up correctly. I remember a lot of anticipation, and a BIG sigh of relief when that step was done on my -6.
Double check the wing incidence angles (equal on each side is the primary concern, IIRC, with relationship to fuselage next), verify adequate edge distance on the rear spar, and then pour a cold one.
