I appreciate any honest feedback. Positive or not.

I don't have much frame of reference for how the bearings ought to sound. it's really not terribly loud in reality I wonder if maybe the microphone picked it up more than it should.

I'm no real expert on the engineering of it. The write up I was following recommended the balancing to be done under no load and give the generated leg 1.08x the voltage of the other legs. It seems legit enough to me. But I can't really say for sure how it will act under heavy load. I know that with the unit running and powering a 5 horse motor that the generated leg voltage dropped from 153 down to about 148. So it seems like under the unit's full load it's going to be in the vicinity of 140. Which is really all we're shooting for right?
In any case, I don't have any three phase motors big enough to really test it under its full load. But it's going to be used to power a 15 horse screw compressor. So I guess we'll find out just how efficient it is.

I sure hope that I haven't scared anybody off. My whole point of the video was to show that anybody with some basic electrical savvy can just step through the process one piece at a time and come out with a working unit.

But thanks again. And I appreciate your compliment.