I'm not sure why teams don't use the backup QB as the holder. Is it because they think the backup QB's change so often there's no continuity? Maybe. I guess you'd have to look to see if teams change punters often these days. If so, there's no reason I can think of not to have your backup QB doing it - it gives you an option you otherwise probably didn't have.
I'd like to see Mikey Mike do this. make Hundley the holder, and at the exact moment in the playoffs, you pull off the fake and have Hundley roll out and throw the TD pass, or at least run for a first down.
Why not?