Finally got back to working on the plane after a very hot summer. Couldn't put off the right tank any longer. I decided to try a technique described by one of the other builders. I will install all of the interior ribs with proseal and clecos only. Let the proseal setup and come back and rivet the rib. The hope is to have less mess to deal with. First of all I installed all of the ribs per the plans. I took one out at a time and buttered with proseal. Reinstalled the rib in place and put clecoes in all of the holes. the process went fast and without mess. I filleted the edges of the flange and rib to insure a goo clean seal. Now to wait til tomorrow to begin riveting
