I'm sorry you don't like the foot....I use mine all the time for piecing (have to position the needle at 53 and shorten stitch length to 25).....I don't understand how it can be wobbly?....is the screw tightened enough?.....did you bring the accufeed foot down into position?.....don't mean to sound like you don't know what you are doing, just mistakes that I have made before....if you really don't like it, I would try to take it back as they are pretty expensive to just sit in your tool drawer.