I agree an endless bobbin would be a quilters dream. When I am quilting on my sewing machine I wind up at least 12 bobbins before I start. I do find that when it is time to put in a new bobbin, it is also a good time to brush out the lint and take a 5 minute break. All my FMQ is done on my regular sewing machine and sometimes I do a very small stippling which uses up bobbins like crazy.