Just got mine hooked up in my garage. Powering my VMC40. Literally only turned on the spindle and jogged it around and cut air. Try and cut chips tomorrow. Im buying a non contact tach just to make sure its behaving as it should. The phase perfect buzzes like an ultrasonic cleaner which i was not anticipating. They offer a quiet version, might of been worth it, only complaint. I got the 10hp model as well.