Riveted the inboard root rib tonight. It was pretty easy since we use the squeezer except that I did not dry fit and did not notice interference when I went to fit the T405 bracket. There was no way out so I removed all the proseal from the bracket and grind down the flange in the offending area. After a couple of trial fits I was ready to install the T405 and T410 to the leading edge section of the rib. I will have to order some additional sealant as I'm running low. It's not that I used a lot on the left tank as much as I wasted a lot. No big deal. This stuff is not expensive.
If you are wondering why I have the face mask, it's because of all the MEK or acetone I was using to clean the clecoes and the skin as I progressed. I do this as I go rather than wait until I've completed the rib. I find it much easier this way.
Rib installed and adjusting the rib to install all the clecoes