After 100 miles in the Turbo 2, I am happy to declare that all the sizing issues of the Turbo 1 are resolved. The upper material is more flexible an the toe box isn't shallow anymore. And while it does seem like the changes to the upper have effected the overall ride of the shoe (even if the midsole and outsole are technically enchanged), what we have in the Turbo 2 is a nimble and lightweight shoe that can serve a variety of purposes from easy runs to hard long runs. Although, for me, I do think that this shoe is best suited for short, fast runs. disclosures: this is a pair of shoes that I purchased with my own money. No one is paying me to make this video or to wear these shoes. No one knows I am making this video, and no one will have any chance to preview my footage or thoughts prior to the video releasing on youtube. additional disclosure: I am currently training with Nike in preparation for the Chicago Marathon. They have provided me with a coach, shoes (not Turbo 2), and...