Got primary #8 done, thought I had primary 6 done, but realized i'm gonna have to re-do the last 8" or so to rotate the collector a bit, got primary #4 started.

Goodness building headers is tedious, and trying to tack things together without putting a glove on the hand near where you are about to tack with a mig WILL get you burned, at least in one spot a little bit, inevitably.