First time on this forum, first post. I'm building an 8A and in the process of construction the left fuel tank. I've done all the match drilling and dimpleing with the CFrame on the skin and squezzer on the ribs. When I dry fit the ribs to the skin the dimples don't pull up tight. There is about 1/16" gap between the skin and the rib. Called Vans and they said put it aside and start on the leading edge to determine if when riveted the skin and rib will pull up. Didn't like that help so I'm turning to those who may have seen this problem and can help. Any help here is greatly appreciated. Regards Tom Webber