Christopher said:
2) Their LEAF with the new part charges via my modified EVSE at 240V without generating any line noise. It's quiet at my desktop monitor and quiet at my electrical panel. Yay!
Great news
... now let's see what happens at my place on their third visit next Wednesday.
IMHO ... I still advise ... if you have expensive electronic "toys" and notice something like what's described here ... unplug them while the (non-EMI-modified) LEAF is charging on 240V. This may not be practical and a PITA ... but better safe than broken toys.
Thanks, Christoper, for the update.