Could you pursue both at the same time? Twelve months isn't very long and you might be able to knock out a degree without much effort and not lose momentum on your startup. The structure might be good and you might make good connections. What would you lose if you started down the path of doing both and bailed after a few months?
Also, while I'm confident I can manage my ADHD to do one or the other, I'm just not sure if I can handle both. I suspect doin both could also be a hinderance to getting investors, but I'm not sure. I'll definitely be meeting with him after SXSW to examine the options & estimate how much time can be shaved off from the degree. I also want to explore what, if anything, he's willing to do on a larger scale.