I have a LOT of CT threads! Yes, they DO produce a lot of lint below the throat plate but it forces me to clean there regularly. Since they are so inexpensive I don't feel like I'm throwing $$$ away when un-sewing needs to be done. Comments here said these threads have no luster and I agree with that. So, for actual quilting I'll use a better quality thread, especially for FMQ, unless it's just straight stitching for a utility/charity quilt.