Perhaps I've been out of the loop (wouldn't be the first time), but I've never heard of missional vs. fractional. I just googled those terms and the only hit I got that used "fractional" in connection to evangelism was your post, so I suspect it isn't quite a topic everyone's talking about. I do like discussing evangelism, though, so maybe you could give a brief explanation of those terms, or provide a link, for those of us who aren't with it enough to be familiar with the issue already.