I don't know if you know this or not but Viking has a new interchangable walking foot. It is supposed to be compatible with other machines as well but not sure which ones. It comes with 2 additional feet and you can get more, like a 1/4 in and rolled hem, etc. The advantage to this foot is that you can do reverse, zig zag and all of those fancy stitches using the walking foot and what ever additional foot you put on. It will take quilting to another whole new level since you can do fance stitches while using a walking foot to control your fabric. A regular SID foot doesn't control fabric like a walking foot does; it works like a 1/4 in basically; keeping it where it's supposed to go.