Photography is both a science and an art at the same time which allows people to approach the subject in many ways that fits how they think. None are wrong, most folks are somewhere in between which makes photography so interesting.
Sounds like you are doing a scientific approach and may not realize it. From what you describe you try something, then alter the process and see what effect it has. If you are doing this in some controlled sort of way, like change one variable at a time and see what happens then you are following a basic scientific approach.
Personally, I use step wedges and I even have a densitometer and make graphs... It helps me visualize the process better and understand what is changing. What defines a "keeper" from a "reject" is how I feel about the result independent of what the graph says. Many on this forum can get to the same result without step wedge or measurement device.
Last edited by jlpape; 03-09-2013 at 07:17 AM. Click to view previous post history.