Interestingly enough, that's somewhat how we're doing it, too. Myself and the other two players created normal, baseline mortals, statted them up, and played through our imbuing (we all heard the call during the same event, at more-or-less the same time). The choices we made during the session determined our creeds, edges, and the rest of the stat boosts hunters get over regular mortals. Seems to have turned out fine thus far, but we slowed down for the holidays shortly after that and are just now starting to pick up again, so jury is still somewhat out.