I have used the minkee and it is polyester for the back of a quilt, just did not quilt it close kept about 4 inches between design. Since it was heavier I did not use batting inside and it turned out wonderful. I had needle issues, but my LQS sold me some stuff called "Sewer's Aid" and I put a few drops on the bobbin thread and on the spool of top thread and that fixed my skip stitch problem. It took some time to get the tension set right but just practiced on a scrap before hand.