Started with the rear spars tonight. It was good to be back in the land of regular old aluminum prep work! Started off by deburring the edges of the big ole rear spars and all the doublers... W-707A, W-707G, W-707D, W-707E and W-707F.
Next, I measured the location of the 707E and 707F and clamped them in position and match drilled with the #30 bit. A good day in the shop...but most of them are. :)