No turning point, just a gradual evolution, finally settling on D76 1+1 - I'm a low volume user and mix up a 1L bag when needed.
A couple of things in this article did surprise me though;
1) "I, personally, only agitate one or twice during development, because I want to be gentle to my precious film"
I thought conventional wisdom was to agitate once every 30 seconds?
2) "use Rodinal and FG-7... both wonderful developers... but they are UNSTABLE. Once you open them (particularly Rodinal), they start to decompose in air at an alarmingly fast rate".
I thought conventional wisdom was that Rodinal lasts forever?
I agree on one thing, D76 1:1.
Rodinal does last "forever." I recently finished a test bottle bought new in 1998. They were into plastic bottles at that point , an EPA mandate from the glass ones with the rubber stopper you could puncture with a hypodermic just like the doctor does. I decanted to a glass one left from Agfa toner which has a tight plastic cap.
Once a year I drew out enough to do a roll. There were standardized test targets so I could tell if things were changing. I got the same results right up to the end where I lost around 10% contrast. 10+ years is good enough for me.
D76 is my normal. I mix from scratch. It is cheap ( if home mixed) and effective and I can use undiluted to 1:3 to get any effect I want.
I have no idea were people get being gentle means do not agitate. You get streaks and "surge marks" from insufficient agitation. No film manufacturer has this in their instructions and that should tell you something. Look at the leader and see the various densities. That is on the neg too and sooner or later will be on your film where it shows.
You control contrast with a clock, not by with holding agitation. The least you can do 10 sec once per minute maybe skipping two or three non adjacent cycles at THE END, emphasize non adjacent .
I never had an ah ha moment. I did it correctly from the beginning realizing it is a mechanical process an you follow the procedure as if you were a machine. The closest thing was when I built the last darkroom and I put in 3 micron water filters and hepa air filters. Clean film with no retouching. Marvelous.
FG7. Got good results but did not continue with it. I dislike premixed developers.
I went to a science and engineering school so the training carries over .