[Comment on something found here: http://www.clobberblog.com/?page_id=190.]
I truly enjoyed this paper--it's well written, well thought out, and wonderfully informative--and would have given it an A myself. (I teach English at BYU but have dabbled in biblical studies on the side--see the following for some of my efforts: http://faceofother.blogspot.com/2007/04/text-of-new-testament.html and http://english2.byu.edu/faculty/youngb/gospels-ehrman.pdf.)
By the way, I agree with you that the status of the Johannine comma has little relevance theologically. I also agree with those who suggest that the Book of Mormon's authenticity is not seriously threatened by its use of textually questionable language from the KJV. That "problem" can be quite easily accounted for. In fact, yesterday I ran into an at least marginally parallel problem in the New Testament (see http://www.reclaimingthemind.org/blog/2009/07/a-possible-error-in-the-bible/).
One other thing: There's a chance you may know of my wife Margaret, a major blogger at By Common Consent and formerly at Times and Seasons.