I just went to a class on threads yesterday given by Pam Mostek. (Dazzling Quilts: Easy Glitz and Instant Glamour). She emphasized the importance of lowering the tension, using a vertical spool holder, going slowly and using the right needle. A lot of what she taught, we have already learned from Bob & Heather at Superior, and Pam uses a lot of Superior Threads. However, she said it depends how much you want the threads to show is how you decide which to use. If you want to see a lot of Glitz, choose a ribbon thread like Sliver by Sulky. So she will start out using polyester threads, then add the Superior Metallics and finally go back and use the Sliver in places where she needs more glitz. Now all I need to do is practice, practice, practice.