ORIGINAL: Agpilot25
I have checked the balance of the blades the tracking and the flybar everything is good and still have the wobble.
maybe take the head apart
pull the feathershaft , and mainshaft and roll them on say like a glass or eqivulantly smooth surface.
if there is any wobble in these parts it will cause a terrible vibration.
but like the other cat said you can get a low speed wobble, some heli`s dont like a slow head speed