We definitely know more about Jensen Ackles's past than Shepherd Book's.

You are absolutely right about that.

I pretty much agree with what you've said about writing RPF without doing the legwork. I probably could do a passable job and garner some readers along the way as well, but the end result wouldn't be as well-written or as satisfying as if I'd done the research. I think RPF will have to wait for me then because my dialup prevents me from watching YouTube or video of any kind on the net.