The 750°F Tempilaq arrived today. Pale blue and fairly thin compared to the white 475° solution.
Painted it inside the neck, let it dry, then put the MAP torch on full 'medium' to get fast heat now that I had a definite "switch-off" indicator.
Spun a half dozen cases up watching for when the blue light disappeared, dropped the case in a towel , and spun up the next one.
I FINALLY got that slight discoloration on the first inch of the case that indicated an annealed condition and
sizing/expanding confirmed the sought-for uniform feel. The Postells seated smoothly groove-by-groove.
Film at Eleven after shooting tomorrow.....