I was just going to agree with Marci about thread. I sew. My grandfather was a tailor, a suit maker, and I worked in his shop for some years. I do have some trouble with newer machines so mine is an older model. But anyway, about the thread; yes, howdy, there's breakage and shredding and it gets caught up the machine and tangled up in the bobbin. I took my machine to be cleaned and serviced last year and the guy told me it was the thread, but he didn't have any suggestions other than "buy good quality"...so thanks, Lee. I'll be checking labels.