Hi Jackie :D First fiddle with your tension, that maybe all it needs. I tried the bobbin fill in bottom and other in top BUT, I found that my old husky only likes the same thread in top and bobbin. I use gutterman or mettler thread as i haven't had a disaster that i could blame on the thread. PS: I got your PM. I tried to reply, was I successful, if not I need help learning to use it :!: :!: :!: Hope this info helps