Thank you so much! It was an experience, learning to machine quilt. I had lots of tension issues and would end up with birds nests on the back of the quilt. Pulled them out, started over... pulled them out, started over... It's just so strange that the tension would be completely fine, then when I came back the next day, it would be off. No changed settings. I think it might've had to do with the bobbin running low.