Originally Posted by
DrosieD
A word of warning, there is a learning curve. These are usually done as free-motion unless you have a Bernina with BSR. It's fairly easy except you need to learn to adjust your machine speed and fabric movement speed to get good free motion stitch. Practice is required.
As far as I know, the foot on the BSR attachment is not a ruler foot unless someone has developed an additional attachment for the BSR. There is a separate really nice ruler foot for the newer Bernina's, but it can not be used with BSR.