Watchon ebay, as well. I bought a lot of 25 that wlll not sew on my FW's. I bought some that were n the original packaging and they work greatl Also, a bout the side winder. It winds them, the prob I have is that I buy my thread on the big spools and the sidewnder wll not handle them on ther own. I put a pencil through thge hole and use that to wind off of. Its tricky, but t works.