Not sure yet from a run through the gears, full throttle stab...but It did change the idle, sounds better, and if I hold it steady at 5000 It sounds different now too. The timing, after adjustment, seems to be the same but the idle is completely different. Don't know why. If I had to guess it would be that the trigger point is more consistent, event though I couldn't see it in the light. It could have been a rotor phasing issue before also with a different trigger point. They will run both ways though.