Originally Posted by
Onebyone
Superior Threads and Fil Tec has great prewound bobbins.
I prefer prewounds because no sewing machine will wind a bobbin with even tension or get as much thread as commercially wound bobbins. I like being able to reach for a full bobbin and not have to look for an empty bobbin, or waste time messing with winding them.
I purchase them from my Bernina dealer. They work great in all of my machines. They not only work well I can not void my guarantee on my machines by using them.