To add to my previous post concerning a walking foot vs the Bernina dual feed foot. This dual feed foot works very well but I find that the thicker the combined fabrics are, the walking foot handles it more efficiently. Maybe it's my batting or the type of fabrics I was working with but on 2 occasions the dual feed foot was not efficient on those 2 quilts & I was very glad to have purchased the walking foot with my Bernina 820. IMHO the walking foot was worth the money even at its inflated price.