We had a cold snap in Atlanta tonight, so priming the floor ribs that I have already finished is out of the question. So, I forged ahead with the outer floor ribs as well as the aft floor ribs which are attached aft of the 806 bulkhead. After drilling everything out, I deburred all of the holes and edges. Last, I dimpled the outer ribs and angles. I guess they will fit flush against the outer skin, so there can't be any bumps on the outer sides.
Cookie, the shop cat, supervises the deburring process