I use coats and clark for piecing as well my machine doesn't like it for machine quilting. I found a fabulous thread 100% cotton here in Germany, Amman but I can't find big spools recently. I bought YUI online and hate it for piecing but I'm still going to try it for quilting. Like you I'm tired of looking. I'm looking one more place here and have my mom shipping me 100% cotton coats and clark. A quarter of the spool ends up in the little green trash can by my sewing table so I try not to spend a lot!