I take he is not long with us?
i gotta admit though. Your not any easier than Pennywise. I've been trying to figure what you would do and the only thing i got out of you is to throw the chart away. lol!
I haven't seen Scrogdawg in years. Maybe Penny has heard from him.
If you break it all down to the basics its not too terribly difficult...
Reliably cool water
Simple/stable nutrients nothing crazy!
The ability to know how strong your nutes are
A solid understanding of pH and how to fix it.
O2 disolved in the water close to 10PPMs
A good light
Fresh air coming in. An exhaust fan pulling it out
Control off RH. Not really required if you have a tolerant strain. But you'll get botrytis quick if your air isn't dry enough for some strains
I'm sure I missed something big, but thats about it. Put the pieces together, and give it all a direction. You're gonna make mistakes. Ive spent entire seasons trying to dig myself out of funky water fowl ups. Ive taken on more than I should have and fallen on my face. But its not the end of the world. If you can keep an aquarium you can grow DWC.
Make doubly sure your meters are accurate
Use the Z9 (i really think this is a big deal)
Top water till you have roots in the water
And, I dont believe the chart is doing you any favors. Its not teaching you anything that you will be able to use should you try another style of hydro. In my mind its having you sweat stupid shit, making your life much harder than it needs to be.
If you have pH issues fix them. If you need to feed your plants then feed them. Calmag is MUCH more important in hydro... watch the bottom leaves. Once the pieces fit and all is right in your world... enjoy it. Watch as your plant grow more than an inch a day. Dont get a wild hair and go aeroponic. Just let it be. Enjoy it.