How does a Dyno Really Work?

I think maybe what he was trying to say was that a dyno does not measure HP. It measures torque and uses that to estimate HP.
Could be his point.
But I don't know for sure. .....and I'm no expert. I am probably wrong about everything I've said here. lol
I don't think your wrong, I know you understand all this ****, I just think we just looking at it from slightly different angles, I agreed with 99% of what you said :)