Alright, I had a chance to get out to the field today and get just 3 more flights on the eBlack Magic. Still having some issues, but it's better.
Adjusted the throttle curve so that was much improved.
Adjusted the ATV on the high end throttle and limited the max amps to 78. Didn't tach it, but the power was still very good. I don't think I had to ever use full throttle.
Flight 1- Flew around for about 2 minutes and then the motor cut out again like it did last weekend. Landed with the motor turning, but not really responding. After about 10-15 seconds and after landing, the motor control was back. So, I just decided to try a different ESC (another CC HV85). I swapped that out. It has the same settings.
Flight 2- Flew around about 1 minute, same thing happened. Landed, hooked up a watt meter right after that. I was seeing around 78 amps, 2500 watts, and the voltage was down to 34 at full throttle (still well above the 30 cutoff). Alright, Mike Hester and Jim Ivey were there and suggested trying something different. I had been running the brake and not spinning the prop at the bottom of the throttle position (just hadn't made it that far in programing the radio, I like using the throttle cutoff on a switch). So, I clicked in a couple bits of throttle on the trim and took off using the same battery packs, etc... Flew about six minutes with no cutting out.
Flight 3- Flew through the masters pattern for the first time. Left in the clicks of trim so it was idling at a few hundred RPM. No issues with the flight.
So, at least for now, that seems to have made a difference.
One negative observation. The AXI/HV85 combo still seems to have some software issues. I have downloaded the most recent ESC software and I'm still getting some screeching from the motor. Not as often as I did using the Plett 30-10 before the newer software, but still often enough to be annoying.
The AXI 5330 seems like a fantastic motor. Definitely has more punch than the older Plett 30-10 and the price is nice. Hey, at least that is one thing on this plane that doesn't cost an arm and a leg. Also, I have a NioseSink installed between the ESC and Motor. There is no question that this has greatly improved my range check!

Emory.