I finally tested one of my Ford NACS adapters with my SE, and it worked perfectly for DCFC. I got almost the full 50 kW rate for the duration of my charge, about 15 minutes up to slightly over 70% SoC. Test was at a ChargePoint DCFC location with both CCS1 and NACS cables.
While the lighter cable was nice, futzing with detaching the adapter from the end of the cable after charging was a bit difficult without dropping everything, so I may stick to CCS1 and only use the adapter when at a location that only has NACS.
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