Short session today. I dimpled the F-707, 708, 710, 711, and 712 up to but not including where the main longerons attach. I skipped the aft sections of the 711 and 712 bulkheads so I can think of how I'm going to get behind the acute flange angles. I also dimpled the edges of the F-779 bottom tail cone skin. On all parts I tried to keep up with whether the parts were second or third layer, and used tank or sub structure dies accordingly.