I continued to rivet the understructure together per the plans.
I riveted the inboard and outboard ribs to the rear spar carry through, I squeezed most of them and bucked the ones I couldn't get with the squeezer. I almost forgot to rivet the manual aileron trim brackets into place so I knocked that out as well. I wasn't feeling all that good so I stopped there. Next step is skins!!
Bucking the right inboad rib attach rivets.
Didn't have to drill anything out which is good for me with universal head rivets with the offset.