I really haven't drawn any conclusions as to what caused the meltdowns. Both controllers were running fine until I put the Neu 1515/1.5d on them. The motor may have been bad. When I received the Neu, I felt that it had been shabbily put together. The motor lead shrink wrap had breaks in it going into the motor and the leads were contacting the motor case. Although the anodized aluminum should not conduct electricity, I added some shrink to protect the leads. It may have just been built on a Friday afternoon. I'm sending all three components to their respective manufacturers for repair/evaluation.

I guess this is just what I get for trying to run a motor up to 50k rpms.

Now I need a new controller. So...what do I get? Another Quark or another Compro. If I get a Compro, do I get another 22418 or settle for the 16018?