I've had my Sidewinder for several years now and love it. I wind my bobbins from a large cone on my metal thread stand and have no problems at all. I have several vintage machines that don't wind bobbins well at all or that need attention so the Sidewinder really does come in handy for me. At first I thought it was a little too lightweight but we've gotten used to each other I guess...but I do put a small piece of rubber shelf liner under it and just hold it down with one hand. Works for me!!