maybe you could take a picture of your set-up with a quilt in place. Is your quilt falling off the extension table and this causes drag?? I've seen where the sewing surface is enlarged by building up the space on our table that is lower than the extension table with large pieces of some sort of insulation/foam board. The idea is to have a large enough area to hold the entire quilt on an even plain with the sewing surface. I have to watch that it doesn't get "caught up " in my lap!