I agree, 15 shots in medium format really seems ideal. I am sorely tempted to go 6 x 7, but the 10 shots/roll seems like a step back. I still might do it if I can figure out my place in the film world. I am still struggling with this because the printing situation is SOOOO different from back when I shot film full time. All the advantages of film (to me) are in the print, and despite shooting 40 rolls of film so far, I have yet to see a single print. It is so damn hard to get prints made here in China. Developing and scanning, no problem, but a print? BIIIG problem.