I have a Gammill Classic Plus and you can unzip your quilt, take out the stitches and zip back on. Some people have told me that they do not like the King Tut thread because of breakage, I don't know, I don't use King Tut. Do you belong to the Gammill Yahoo group, people there will give advice on how to fix your problem too. Go to their database and look for postings about tension. Hope you get it resolved, I hate it when you have to mess with the tension instead of enjoying the quilting.