Has anyone had any experience with the Mirage 3s? The Mirage 2s had been my go to shoe for a while but I've since been running in more minimal shoes for the past year or so. I've experienced some nagging injuries since then that I never got with the Mirages, so I'm going to go back to the Mirages for my fall marathon training. From what I've read the big difference between the 2s an 3s is forefoot flexibility, weight, and a less constricting upper. All good things, but just wondering if anyone here had any thoughts.