I am ridiculous about controls during the processing of film. Do things without a
proper plan and controls in place, expect unpredictable results.
if someone has a system that works for them, that is great,
it can be as ridiculous about controls or as slack as can be
when he or she processes film. someone with no controls
( or seemingly no controls ) can get just as predictable results
as someone with ridiculous controls.
there are ways to develop film without knowing the "proper" time
http://michaelandpaula.com/mp/devinsp.html
people have been doing this for 100+ years, whether with pan film and a green light
or glass plates. and the results are quite predictible ...
i use caffneol developer made with home roasted coffee beans.
i don't really measure any of my ingredients and i use a little print developer mixed in
i sometimes stand develop myfilm with regular old cold water from the tap, sometimes warmer
for anywhere between 25-35 mins i dont' really pay attention to the time, if i remember to get down and rinse i do
if not, i don't worry about it, another few mins isn't going to do anything ...
i don't have any tight controls, gave up on them, im not suggesting you or anyone else stop doing what you like, and what works for you
but there are ways of getting predictible results whether you have strict anal, and ridiculous controls or not ..
whether you use fresh, in-date cold stored film or expired, shelf stored film, middle of the road well known chemistry ( like D76 & c ) or
something else concocted on the spot from ingredients found around the house ( or supermarket shelf )...
the thing is to have a good time, the way i see it is if you are too busy worrying about .05ºF or 1/8fstop over/under exposure or if your film was stored in
a 54ºF fridge instead of 55ºF ... it doesn't seem like that much fun .. and it is supposed to be a fun exercise ..
YMMV