Thanks for the info. I should have metioned that yes I do bring up the bobbin thread. I have a kenmore. The feed dogs don't lower and I know it came with a cover because I looked on the box at what it came with and it said a cover but this machine was given to me some years ago and I never really used it until recent since I've discovered I love quilting. I took the advise of covering them with tape and or business card but again when I lower the foot it is very difficult to manuver the sandwich through and it bunches up as I try to gently feed it through with my hands. I will send a pic at the stiches so you can see the back. Thanks for you help. I really appriciate it.