I bought a ruffling foot in order to attach a ruffle to a blanket. My thread is breaking over and over, and it feeds unevenly. It's a 6 inch wide piece of fabric, folded in half. It takes the top fine, but the bottom seems to get gaps no matter what I do. Anyone have any experience with this? This quilt is turning out to be a problem everywhere I turn. If anyone can give me suggestions, I'd appreciate it. My bobbin keeps seeming to stick too, no matter what. Every 6-10 inches, the thread breaks. I have to open up the bobbin case and the thread is in there firmly and won't spin out.