I use Aurifil, Craftsy, or Connecting Threads for piecing only, and have several spools I bought about 3 years ago. Seems like I will never use it all up. But I would like to try a polyester thread for quilting. Have priced King Tut before and was shocked at the price. I may have to shop around to find something that not only I like but that my machine will accept for quilting.