Originally Posted by quilterpurpledog

I use 50 or 60 weight for piecing-Precencia or Aurifil. I usually buy and use the cones because they are less expensive-especially on sale. However, I have another confession to make. I am not one to have a bobbin to match lots of different colors. So, I run out partial bobbins to piece-no one will ever know (you are the only one I have told). I do have a large assortment of threads because they each have special uses. My BERNINA machines like them all. I most often use the above mentioned threads in the bobbin no matter what I am using on the surface.