Many runners spend their days scouring the earth’s surface to find that single special set of shoes that will take them to marathon greatness. These runners mistakenly hunt for their soulmate as they believe there is only one special shoe out there that can get them to the starting line unscathed. But what if you not only could- but possibly SHOULD train in more than one shoe to prepare for race day? What if training in two shoes actually has real physical, psychological and training benefits that can enhance your race day performance?