Brief Description: Fuselage - Attach forward main spar. Last time.
I actually put the forward main spar back on before I put the side skins on.
I went and found all the spar spacers and temporary bolts and attach the forward spar. I also attached the main spar vertical legs to the longerons. Take car to get the attach straps at the original locations and flipped the correct way. It matters because the 3 holes in the strap are not on the same line.
Image 3 shows the mini tabs under the conical bend. Notice here I have bent up the tabs. This is required so the tabs fit flush with the conical bend in the skin. Do it or be sorry.