I have an 820 and have had the same problem. Carolina quilter is correct, I can't free motion if I spray baste. I almost ruined a baby quilt before I discovered the problem. I have also discovered that when I use the BRS to not plug it into the machine and I have better success. You should also have it serviced and have the spring replaced. There was a problem with the BSR and it needed a stronger spring. Good luck!