Work continues on the aft fuselage. While on vacation, the tailwheel spring and mount I ordered arrived, so work started with them. I had inadvertantly deleted these from my fuselage kit order. The opening in the bottom skin and the opening at the bottom of the aft bulkhead where the mount exits both needed a good bit of filing for the mount to fit. Once I got it to fit properly the bolt holes to bulkhead 711 were drilled then upsized to 1/4" for AN4 bolts. The keeper rivet holts to rivet the mount to bulkhead 712 were also drilled. With this task done I took everything apart and resumed deburring and dimpling. Most of the bulkheads were deburred and dimpled, as were the J-Channel stringers and the bottom skins. I got most of the way through dimpling one side skin before calling it a day.