Took some time this morning to clean the shop and then started disassembly of the left fuel tank. Scuffed the rivet lines on the skins and scuffed all the stiffeners. 7/20: woke up early and got some work done before work. Got the ribs scuffed and cleaned and then dimpled. Set up the drdt2 to get ready for the skins. 7/21: got the skins all dimpled and masked the stiffeners in preparation for proseal. Leaving for airventure tomorrow so that will wait until I get back.