I have a Golden Touch and Sew Singer which I bought brand new in 1972... gee,is that vintage?? Doesn't seem to me like it could be, but I do have a question about it. The bobbin tension is great but the upper thread is not right at all. I took it to 2 repair shops in hopes that they could fix it. They said they fixed it, but it continues to have an upper thread tension problem. So I gave up and bought an Elna 7200 about 5 years ago. But now, I have hope that perhaps I can fix the darn thing myself! I found a "fix-it" website that says the tension discs located on the front of the machine are creating the problem and just a good cleaning with dental floss should do it. I haven't hauled the Singer out of the back of the closet yet (it's heavy!), but is this a likely fix for loose tension?