I am really excited about the awesome curtain panels I am sewing out of painters drop clothes. They are looking like the Belgian Linen curtains in Restoration Hardware for a fraction of the price!. I have to line them(my first time lining anything)but the top fabric is looser weave and is stretching big time. I pulled out my walking foot and after getting reacquainted with it, I ripped out and started again. The walking foot alleviates about 90% of the problem,but layers are still feeding a little unevenly . Any suggestions to get that last 10%?