Quote Originally Posted by Truzi View Post

At this time, I need to see "obvious" differences - things a beginner can notice easily. (I've a little dark room experience from elementary school and my undergrad, but now want to actually _understand_ what I'm doing.) When I get better I can then learn about the finer points. I have tried push-processing twice, but don't yet have a full appreciation of it beyond theory

Truly the best way to see obvious differences is to look at other peoples photographs. Not only will you see the results of a certain combination of film and developer, but also see the context of why somebody with experience used that combination to fulfill a goal. Try Flickr or the other photo sharing sites, the images are often accompanied by notes.

Processing should be based on knowledge, with sound reasons to do something, and with a sound plan. The alternative of going on a wing and a prayer is that you will never know if you made a mistake, or if it could be better.