Thanks for the tip -- I know it all starts at the feet. I neglected to mention that I have had my feet measured many times (though only at your typical outdoor store... Road Runner Sports, REI, Cabela's, multiple running stores) and no one has ever mentioned needing a wide shoe/boot. I spent a lot of time specifically at REI trying on various boots -- the Oboz fit the best in store, by a long shot, but it seems hard to tell how that translates to the trail.