I'm mainly a kenmore girl also. but..... my ex left his grandmothers treadle with me. A singer 66 from 1922. and I have another head for it, a 66 from 1924. So I am in the process of cleaning the treadle and I plan on turning the spare one into a handcrank. I can't wait to get these done. These 66's have a drop in bobbin type. I really like the looks of that. The only kenmore I have with a drop in bobbin in my 385.1960180.