I noticed a very unusual movement when watching a video of Yoko Okamoto Shihan during a morotedori attack (2 hands grabbing wrist). In my limited 3.5 years of (Aikikai) aikido experience, I have never seen anyone else place their feet like that. I tried it out in our dojo and it is surprisingly effective. Below is a link someone else posted of her teaching and demonstrating what I am talking about. Does anyone else do that? Is this "common"?