I use Gutterman for piecing - 100 percent cotton. When I first started to quilt I use coats and clark and had problems with my machine....and lots of lint. I read on here years ago that others had the same issue...I switched brands and no problems since. This thread is interesting. I have never heard of some of these brands. They most likely have them in the LQS I just have never noticed. I am going to the LQS today to get some fabric for my boarders for my blocks...I will now have to check out the thread ; ) my hubby is coming and I will only have a few mins to shop. We are heading out to pick up my ski boots which I had them put in heaters....Yeah..warm feet this year.