I started this thread and am having a problem. I am trying to sew the pocket onto the quilt but the bobbin thread keeps bunching up horribly. The qwillow is thick-cotton layer, flannel layer and low loft batting, so I used a 16 needle. The machine sews fine on test fabric. I keep checking. But when I try to sew on the pocket the thread bunches. Any suggestions. Please, I would like to get this poor project finished before I get any older!