as always, thanks for looking and commenting; i really appreciate the feedback and enjoy reading others' reactions. @mlehrman: 6x7 for me is simply a practical choice now as i don't currently have the ability, tools, or confidence to develop, print, or scan full-size 4x5 negatives. i'm thrilled at having the option of a 6x7 roll film back for the linhof MT, but boy-oh-boy, i can't wait to sink my teeth into some *real* large format sheet film!