Nice job on the cleanup David. Did you use a lower temp on the ultrasonic? I tested a really poor condition hot stamped frac in my ultrasonic and after only 60 sec had some foil disruption without much cleaning effect. Went with hot water/Dawn/toothbrush technique instead for the rest.
I will send you a detailed breakdown of what I have via PM...I need to take a more detailed inventory my similarly mish-mashed El Cortez/Sams Town mix, but I also have a few that need to be culled out. Sitting at 190, need 10 to finish second rack but I also I have about 10 chips that your culled chips would be an upgrade on.