Never use mine on either Babylock. Could never get used to using it. I was told I am probably sewing too fast to concentrate on the sewing and using the knee lift at the same time, if that is possible. My hand thinks it has to reach for the presser foot lift. Mainly I use the automatic presser foot lift that is built in. The knee lift is a neat concept if you can get your knee and your brain working at the same time. I haven't been able to master that yet.