I'm a 35mm shooter, I've got Carson Graves book, and others. It is true that ZS works very well with sheet film and LF cameras. But the principles of ZS help the 35mm photographer visualize his final print. Should I happen to get ONE very good or important exposure on a roll, I will develop for that exposure. In 35mm the ZS maybe isn't so much about DESIGNING the exposure as it is PREDICTING the negative. In a LF picture you can do figuring and calculations for a long time, you can sketch, plan, and then execute. Typically the 35mm shooter is going much faster between exposures, and his or her visualization of the finished print is kind of like a Reader's Digest version. That's why we bracket. But another product of learning ZS is that it increases your appreciation for THE PRINT, yours and other people's.