Being tuned to the Supernatural and all, I got a message from Lu to say that the flight test must have been a failure - the blades are coning the wrong way, so the coefficient of grunge trunnion stability must have overflapped.
He didn't explain what he meant, but i am sure it is something to do with the missing 18 degrees of phase lag.
Please include 18 degrees as an essential fit, not an option.