makitmama,
Thanks for the explanation of Minkee. My wife and I just learned something.
That is the WF I just got. I tried it again after loosening the foot tension and it didn't work much if any better.
I also tried the ZZ WF my wife has for her Bernina 930. No idea what brand but it works much better. The walking foot dogs don't match up with the SS feed dogs exactly, but enough that is really grabs and pulls the material. It also has more pronounced teeth on the dogs where as the one from Sew Classic are really fine.
Joe