There's a category missing. Carefully applied zone system, results analyzed by someone knowing what they want in a negative, having done all those careful calculations a very long time ago. If my N-1 times are off a little, from looking at my negs, I adjust the time a little bit. Things change over time... probably from how much coffee I am doing, which affects the agitation in the trays...

So I "carefully" apply my zone system, it isn't partial at all. But I don't bother with bzts or anything else because I know what I want... from experience.

Lenny