The fascia has been detailed in theory, held up to scrutiny, discussed and debated to death. For some reason we were all seeing it differently. We tried many versions of white trim at different widths and lengths, gable rake, drip edge, and so on. Here is photo evidence of one attempt to find something that works. By Sunday mid-morning we finally reached agreement--ditch the big white thing. We'll use stained lumber instead with a diminutive white trim at the roof line. Whew.