ORIGINAL: D2Pilot
Arrow,
One problem I had with my blade that caused gliching was a bad bearing that holds the main shaft. When I took it out I discovered that it did not spin smoothly. I replaced both bearings and the gliching went away. I believe it has something to do with metal on metal contact in the bearing. It took me awhile to find this and just wondered if it may be causing your problems too.
Harmonic glitches???? That's deep!