I just finished quilting a lap quilt. Every time I do this, I remember how much I don't enjoy trying to stuff a quilt through my machine. As soon as I try, the fabric takes on a life of it's own. It refuses to stay rolled up. It won't stay on the table and insists on leaping to the floor and unrolling on the way down. When I do succeed in keeping the quilt rolled and on top of the table, one end leaps off, reaching for the floor. And it grabs the edge of the table with great intensity, refusing to allow the quilt to gently glide back and forth for a smooth flowing stitch.
I made myself this table extension last year, which improves the situation a bit. It's really nice to have lots of space to each side of the machine to handle the quilt, and work left to right instead of front to back.
I think if I make the table a bit deeper - so there's more of a ledge at the front of the setup, I might have more luck keeping the quilt roll on the table. But it will still fall off the ends and unroll there.
When the quilt is longer than the table, it droops off the end, and gets caught on the corners/edges. And then suddenly I'm quilting in place, rather than in smooth flowing left-right arcs.
I don't have room for a table much longer than this, unfortunately. Unless I can convince one of my sons to give up his room. Somehow I don't think that's going to happen.