Oh, also, I ran into a UPS Store that apparently uses iPP350s (Shift4 branding on the UI) instead of MX915s. Everything was enabled and contactless ran as EMV per the bottom of the receipt:



I only see a few area locations on the MC map, though, so perhaps I ran into a test one? I hadn't been in one for a while but I seem to remember them using MX915s with only swipe/chip enabled as recently as a year ago. This particular location even still had the mounting bracket for the MX915/925 despite not having one mounted.