I find the one at the top of this page entertaining:
Technical FAQ: Giving up carbon for old titanium - VeloNews.com
Seems to me the fit of road bikes, at least as far as the frame, fork and stem determine it, can be fixed by three dimensions: the seat tube post angle and the reach and stack distances from BB to centre of handlebars. After that it is just a matter of having the right seatpost and saddle, crank arm length and handlebar shape. Dunno, maybe I've missed something.