I mentioned Martin Muncacsi 2 days ago in my "Sports with Rangefinders" thread, where the issue was about (supposed) slow cameras for fast jobs.
For all passionated large-neg-freaks who will be in Berlin during the next to months I strongly recommend the Munkacsi exhibition in the Gropius Bau.
Some English info about the photog and the exhibition here :
Photographer and Exhibition
Attached some samples of what this guy did with 9X12, for wich hed had an attachable reflex back too, with a huge waist level finder on top.
IMO an amazing example of what a photog can do if he believes in his tool as beeing the best tool for him personally.