I meant to address that one, but I forgot about it while writing the other points. It's tricky, because if a prospect ever asks them about it they might say, "Well, I didn't actually write that, *he* did" -- and then it loses all credibility. If a client asked me to write it for them, I'd try to involve them in the composition somehow, to avoid that.

Thanks again for the kind words, and the additional points.