Thank you Lisa. I have an Avante and we are winding our own bobbins. We bought some Magna glides for the first time and was thinking of trying those with the Glide thread on top which we've also never used but keep reading great things about. Right now I have Omni on top and Sofine in the bobbin. My test pieces look great and have no issues starting to sew. Rethreading fixes the problem until it happens again. Only happens after sewing for a bit.