I updrilled everything in the lower aft section. Then removed it all and deburred it. I then marked off the holes for the gear legs and cut those. I ressembled it all and started rivetting it all together. I had put off rivetting the bottom skin until I cut the holes for the gear .. I figured that would be easier to do on the bench. Tomorrow I just need to rivet in the gussets that the gear braces go to and this section will be done.