I just got a call from my dealer, which is where my 630 has been for the last week. The tech. said that she changed the spring in the BSR attachment, which is what another poster said her tech. did. I didn't tell my tech. about reading that the BSR spring was possibly a problem. This tells me that Bernina knows that their BSR has major design flaws. My tech. also found that the seats for some screws in the front of the machine had cracked leaving the screws loose. They had to order parts so I won't get it back for at least a week. When I do I'll let you all know if any of this makes any difference. I also passed on to them the message that I got from Bernina saying that the manual was wrong and that the presser foot setting should be 47 and not 0. I haven't talked to the owner yet about it to see what she says, but the tech. seemed very surprised. What a wonderful tool the internet is!!