We have been using ARC Poly on the Amaya slow and fast. Seems to have no problem. Just recently used their mon-rex sliver for dance bags, nylon with waterproof backing, 1 layer of cut-away and 12 needle. They worked great but only after talking to Mike at Melco. We had to practice to get all the bells and whistles in the right place. Alan and Margaret Jannuzzi Wishes in Stitches Embroidery 4502 W Buffalo, Chandler Az. 85226 480-216-3163