I have always thought that for hand quilting you should use one of the threads made for hand quilting, the ones that are glazed or waxed, YLI,Guterman, Mettler, and the like. Recently I've been reading about using some of the heavier weight threads like aurifil 28wt. or sulky 30wt., have any of you used these threads for hand quilting? What did you like or not like about them? Thanks!