KELSIE, BSR=Bernina Stitch Regulator.
I started FMQ on my Bernina with BSR and thought it was just wonderful. Then as I evolved I wanted to go faster than the BSR would allow. So I bought a Juki TL2010q. Stitches are so much nicer and it is a faster machine. I still use both as the Juki is a straight stitch only. It took a while to learn to be my own regulator and I'm still not 100% but getting there.