I have a BabyLock Quilters Choice, have had it for over seven years. I have learnt so much about it and how to use it and continue surprisingly to do so. The bobbin winding was a problem for me too, I could not get it. And when I did get the bobbin wound it was just a little loose. All I do know is wind the thread a few times around the bobbin, put it in the winder, cut the tail and pop it in place. Something I have learnt which is major is to have a tight bobbin, to get this, I hold the thread between two fingers in the area that comes off the spool of thread and let it wind. Naturally it stops when it is full. A very tight bobbin, do not have trouble with sewing, whereas before I did this, there was always some issue. The dealer where I bought this machine showed me this little tip and it works like a charm. I have to look but I think there is a little hole where I could put the thread through, but I ignore it and just wrap, also if I feel there is going to be a problem I start winding for a split second and cut the tail end. It really is a learning experience with any machine.