In case anyone doesn't know it, Ars Magica (ArM) suggests each player have (at least) TWO player-characters: one "magus" and one "companion" (there are also "Grog" pc's, a pool of low-level grunt/mook/comicrelief PC's (also lotsa fun to play!)). Many of the tropes in ArM are similar to DFRPG in many ways, including that magi are notably more-powerful, but suffer inescapable "issues" with moving through larger society (in DF, it's mostly the tech-hex; in ArM, it's social penalties for their "creepy" magical Gift; both suffer from "so much magic-focus that in other spheres of action they're rather naive, only moderately competent, etc). In any play-session / story-arc, ArM players will pick EITHER their mage or their companion for play, with typically only one (or a few) magi, and mostly Companions (supposedly; I know many Troupes regularly have 50%-or-more magi) on their expeditions. Certainly the source novels focus on Harry + non-Wizards (with occasional exceptional scenes e.g. with Elaine, Ramirez, etc) in this way, and from reading online it *seems* that many (not all!) DFRPG groups follow the "one-or-few full Wizards / preponderance of other types" schema.
It has struck me that the similarities between ArM and DFRPG are strong enough that many elements from one game would "play well" in the other game, including ArM's "Magus/Companion" (and even "Grog") tropes in DFRPG.
So... has anyone done this? Run a DFRPG campaign with 2+ PC's per player, with the specific PC's coming up per-story as seems most-fun / most-appropriate?