I thought it was a quilter's rule to always have 4 or 5 going at a time. This is what I tell my quilting gals any way. I have about 6 now and am going to start another. I is so cool when they all come together and you finish them all aboiut the same time. I love it. I hope God keeps my eyesight good and my fingers nimble and a long life so I can finish them all. I love it!