Machine quilting

Heather:
One more thing. . . .
Recently I was having trouble with the tension of my machine, couldn't get the darn thing to sew 2 inches without bumps and lumps in the stiching.
After an exaustive trial of tension in top and bottom, a different thread in the top, etc I quit for the day. The next day I had one of those AH-HA moments, and put in a different bobbin, this happened to be a pre-wound one. It worked like a charm.
Maybe try a different bobbin, if you wind your own, wind another from another spool.
It might work, it worth a shot.
Sara in Fla.