The walking foot is a foot that makes the top layer move along at the same rate as the bottom layer. IDT/dual feed does the same thing, but its built into the machine. I love my Pfaff with IDT, I quilt with it because its easier to see where I'm sewing, the walking foot for my other machines works well, but its harder to see where I'm going. I also like the IDT on my Pfaff for piecing quilt blocks, especially flannels; my blocks usually come out to the correct size.
Last edited by purplefiend; 07-30-2012 at 11:21 AM.