I am in the middle of stippling my queen size t-shirt quilt and my thread which work just fine in the begining is now fraying on top and breaking!!! its happened like 5 times now! My tension was perfect because I have different color on bottom then on top...its machine quilting thread on my janome 1600p....I just dont get it, I am sewing threw logos like I was at the beginning....could it be my needle hole has gotten a sharp edge and is cutting on my thread? Ok I will change my needle and see...anyone have any other ideas what this could be?