Ok, now I am going to have to look at my old machine that I hated and didn't think it could do anything. I was using metal bobbins because I thought that's what I should have used. And I had birds nest every where. I just hated the way it stitched. So I got a new machine love it, with plastic bobbins that look just like the metal ones, but you can't see the color of thread in a top load with metal. So I may have to play. My first singer used plastic but they screwed together, and I didn't like that because the thread would get caught and stip the screwy part. There is indeed so much to learn on these machines.
ps. does anyone have a good quick idea to use a serger on. I got a new serger too but haven't used it yet. Guess I better start googling serger patters before DH wants me to return it.