[jhautz]

Brian,

Really interesting find there... I'm not sure Im underatanding exactly why a 4 pole motor makes a difference over the 2 pole though. Whats your thinking on that???

I can see how a locked rotor can cause a big heat issue for the MM if the motor is too large. though. Probably why I had mine fail whill cogging on a large motor. It cogged so bad it acted like a locked rotor and just pulled to many amps.