Well the Mamiya Press system sounds pretty nice overall. But what are the repair/parts options? That's a point I always like to question just in case. In 6x7 you have the RB with the rotating back and then the Koni Omega Press. Also the Graflex XL. The Graphic's of course will never die cause their just a box with a bellows but the process is slower with a handheld meter being used and a rangefinder for only one lens FL unless you go with the Super or Top Rangefinder option. Look at the weights and question whether it will be too much or ok. Here's a comparison site I found that was interesting: http://www.mir.com.my/michaeliu/mich...resscompo.html