I still don't have a squeezer to rivet with but I was able to continue working ahead as this section required back riveting. I used the back rivet plate that I inlaid in my work bench and the 3x rivet gun. Back riveting is actually pretty easy. Did all the stiffners on both skins. Be careful not to run off the back plate...the one that came with the cleaveland tool kit is only 16" long. I eventually went to a local fab shop and got a piece that is 3' long. It's not polished so I had to use my hand grinder to take off the rough surface.