I'm going to be living alone starting in June, which will give me enough privacy for jelqing, hanging, and pumping. I'm planning to record my exercises and progress very carefully in hopes of lending evidence to the penis enlargement debate (either for or against).

I'm wondering what it would take to lend decent statistical evidence to the argument? How could I rule out measurement error, or my own bias? Often people claim that pictures of proof involve different measurement techniques to bias the measurements. Is there a foolproof way to prevent this?