I'm trying to decide between the two boards as well.
Question: What does "WW" mean? Is that "waist width"? If you wear a size 9, which fits comfortably on the medium-wide Rice, why would you sell it due to it's waist width? I think the Jones Twin is actually narrower than the Rice when I was looking at the two boards, but maybe I'm wrong on that?
Think he did mean waist width and he sold it because his feet are too small for a midwide. I ride the 161.5 and wear size 10. Didn't really have any problem with the WW myself, but personal preference and a whole shoe size.