I'm getting close to building wing tanks now and have done alot of thinking on the sequence to use. Anybody have a "this worked great" way of doing them? I'm only talking about the ribs. I don't want to put a bead of proseal down and then smear it all over when putting the ribs in place and trying to line up the holes. The ribs are so tight in the skin, seems impossible to do without smearing the proseal all over. I thought about doing the top of the ribs first and riveting them in place then try to proseal the bottom a few days later and doing them. Anybody try this approach? If there's someone out there with a good idea, I'd appreciate some feedback. Also, is a jig worth building? I never made one for the leading edge and had no problems getting the ribs in place but seems that the tank ribs are a tighter fit.