I still haven't been able to play with the wizard as much as I would like yet, but I have run into a small problem. My Dremel (sorry, don't remember model right now, it has an external battery.) seems to "drag" a little, as if the spinning collet is bending a little with the force. Is this a normal problem, or could it be the Dremel I'm using? This isn't so much of a problem for a basic spiral or sinusoid, but when the cuts overlap, it will straighten out and bend again once it starts cutting. Anyone else have this problem?