That is what I thought too but leaning it only smoothed the transition, not the idle.
With the solid nose ring it is workable now - still rough but workable. I will try leaning the regulator further today. I had it leaned about 1/4 turn. I am at about 1.5 turns on the top end (motor is new with maybe 1/2 gallon run through it since it was repaired (broke a Cam when new))