I want to thank you all a lot for all the input. I have used signature 40 wt and yli 40 wt. to quilt with and I would like to get something finner I want something that show the quilting but not the thread cause I'm not that good at FMQ, cause sometimes a stich is longer than the other and I don't want that to show. You all have set me stright. on what sige thread to use. I read some were that the 90wt. was good for quilting, but maybe I was wrong.