After a huge amount of time, even getting the benefit of the thoughts of the owner of the store, the main determination is that RRS has had me in a shoe that's too big. The owner nearly thought I needed to go down a full size (I even squeezed into 1.5 sizes down on his request), but we went to a half size down.
And the contenders ended up being what I HAVE, just half a size smaller, and the Nike Structure. At one point I was running around the store wearing one of each, then switching. I almost felt like just buying both and running like that. (actually I DO want to buy both because they both felt so much better) Got brave. Got the Nikes. Now I'm afraid because Nikes and I don't have the best past! We shall see.
They normally don't have a real *return* policy, because they will just put you in a different shoe instead of refunding you, but he gave me a special piece of paper about a return if I need to do so. I think it's because they have a smaller selection and my feet were so difficult to fit. I tried on something like 7 shoes; all of their wide shoes, really. He even put me in a normal width, just to see. They were about to bring out the small Men's shoes when the owner came in and took over.
And I got some compression sleeves for the calves, which felt so good when I tried them on... I don't have an intention of running in them; they are for afterwards, but you never know. I seem to have a tendency to change it all up in the final weeks of training!