Ok, so I've returned from many a store and found that I can't tell anything at all about the shoe from just running around in the store with them on. I'd contemplate trying to find the Masais but worry about fit as I've discovered I take different sizes in Montrails. With the small parameters of Vasque, Solomon and some Montrail models - & full orthodics so whatever bed is coming out and the somewhat stiffer orthodic going in - run will be on rocky terrain - both ankles prone to rolling - I should look at which model? If money was not an issue I'd go ahead and buy three or four pairs and go for it but money is an issue so I'm going to rely heavily on your prior knowledge, experience and expertise on the issue...