Finished the seat back assemblies. Cleaned parts, sprayed with zinc-chromate rattle can from ACS, and riveted to fuselage. Damn squeezer quit squeezing again on the 470-4s so I took it apart and applied more white lithium grease to the piston and cylinder. It worked for one rivet then again would move but not squeeze. So resorted to bucking them which I am never successful doing by myself (-4s). Drilled out half and redid. Retired to house to sulk.
Finally searched through VAF and found the answer: the squeezer is fine, it's the leverage of the internal mechanism. It's not applying a constant force throughout the stroke, rather maximum force is at a certain point. Substituting a thinner flat die fixed the problem. !@*#&!^@*#
