On takeoff from SFO, actually....wrong flap setting. Should have been 20, but ten selected instead. After that, PanAm adopted a "configuration check" (flaps, spoilers, stab trim, compass heading) as the last item on the before takeoff checklist.
Have to admit that, altho have received training from several other airlines, PanAm training was the very best, IMHO.
No BS, just the facts.