Removed the vinyl and fitted the tanks to the ribs. Wow. Until now, cleco'ing to the ribs occasionally involved a little tugging. This involved some major muscle to get everthing to fit. I actually broke a couple cleco's. The left tank fit perfectly. The right tank skin overlaps the leading edge skin at the very very bottom by maybe a mm. I have tried tugging but can't get it to fit. Gonna remove it and see what's up.