I love my BA's and have run in all 3 generations of them. My longest run has been a half marathon with BAs. I'm going to be training for a marathon soon, and I'm not sure if it'll be enough shoe for the really long runs. Although I haven't had issues with the BAs so far up to 13.1. I love the light feeling of the shoes and the zero drop. Any suggestions for a similar ride but with more support or cushioning? Doesn't necessarily have to be zero drop, but I'd prefer to keep it at 8 or under.