I have a SideWinder that I use EXCLUSIVELY for bobbin winding. I never use the bobbin winder on any of my sewing machines. I wind a dozen bobbins at a time so I always have one to pop in the machine and never have to unthread the feeder or top thread on the machine. I check the bobbin often but still run out now and then and find I have "sewn" a foot of fabric only to find it isn't sewn. I wish the sewing machine companies would figure out a way to have a little light come on or some way of letting the seamstress know the bobbin is getting low. A man can be sent to the moon, they've made computers, cell phones, palm-sized computers it seems to me a little warning light on a sewing machine would be pretty simple!! Maybe I'll see if I can invent such a thing and get filthy RICH with my invention. :wink: