Freeriders are a lot cheaper than Freerider Pros. More important, they're mode on a different last. The Freeriders fit me fine. The Pros are too narrow. If your foot fits the Pros, the extra $50 will be worth it. Personally, I'm happy that the cheaper shoe fits me.
These aren't the only good shoes, though. I think Chrome and DZR (?) may also make shoes for cycling on pinned flat pedals.