You could order direct from Superior Threads, their shipping is very reasonable and quick. Also I have have bought thread from SewThankful.com. The thread is a little cheaper per spool, some of my order was back ordered but those items were shipped later with no additional charge for postage on the additonal shipment. I love the Masterpiece threads for piecing and use King Tut in the top for quilting with Bottom Line in the bobbin. Good luck finding something that your machine likes.