What a releif. And yes. My mirror does the same thing. Shakes like hell. I think the screw that holds it in place is comin loose. What a load off my shoulders. For a second there i thought i would need to buy a capacitor or a heavy duty battery or larger pully arangements. Glad ur expiriencing the same effects as would other people i assume. Good to know. Just one more question. Will it damage the needle any? Thanx a mill