Not sure about the Special B in there. Just looking for some complexity? The flaked is also non-traditional I think. Can't argue with the GoP, I just used them in my saison. I guess you're not going for a traditional saison with the wit yeast, so the grain bill doesn't need to be so traditional either. I think it will be great beer. My recipe was just pils, munich, and wheat. Mash loooowwww, and ramp up the ferm temp <-Jamil's advice, not just my own.