I ran'em all and settled on 19/5 cause my math was off when setting the timer lmao too much medication that day I guess. I may try 24/0 again this winter as temps drop and I'm running autocobs so may need to for temps.I've done 18/6 20/4 and 24/0...and when I was running 24/0 there was no difference to running any of the other times,just a bigger electric bill lol.
 .  I appreciate you trying to help with something that's a bit off.  To answer your questions, I hand water every other day in airpots so I can certainly say they aren't over watered, pots get feather light.  however I do take my pics for the most part when they're "sleeping".  They seem to get a bit more turgid after an hour of lights on.  Another reason I believe they don't pray hard is simply my cheap lighting.  My temps and humidity, my feeding schedule, genetics and air movement are all pretty dialed.  I believe the plants want a ton more light then my 2 Mars hydro 300w (134 actual) can deliver.  That is my theory as to why my girls take an extra 20ish days then others as well.  As far as 20/4 vs 24/0, these ladies were planted in the heat of a California summer.  The 4 off hours are during the afternoon when my groom gets a bit warm.  My next run, I'll run them 24/0 as winter temps will be perfect for it.  After that small, unscientific run, I'll let ya know.
.  I appreciate you trying to help with something that's a bit off.  To answer your questions, I hand water every other day in airpots so I can certainly say they aren't over watered, pots get feather light.  however I do take my pics for the most part when they're "sleeping".  They seem to get a bit more turgid after an hour of lights on.  Another reason I believe they don't pray hard is simply my cheap lighting.  My temps and humidity, my feeding schedule, genetics and air movement are all pretty dialed.  I believe the plants want a ton more light then my 2 Mars hydro 300w (134 actual) can deliver.  That is my theory as to why my girls take an extra 20ish days then others as well.  As far as 20/4 vs 24/0, these ladies were planted in the heat of a California summer.  The 4 off hours are during the afternoon when my groom gets a bit warm.  My next run, I'll run them 24/0 as winter temps will be perfect for it.  After that small, unscientific run, I'll let ya know.  

From the horses mouth, scientific or not, if you're visibly noticing a diffrence in quality, 24/0 next run forsure! Thanks for chiming in!We go 24/0, I think it makes for faster development.
Never did a scientific trial on it, but we had some double grape under 24/0 in one part of the farm and 20/4 in another. And by eye the 24/0 looked way better.
Coloration will be strain as well as temps but we just plain water the last few weeks and they get a nice fade on.
Anything 18/6 or more is going to work and not be detrimental to growth. Rest is personal choice for the most part.
I ran'em all and settled on 19/5 cause my math was off when setting the timer lmao too much medication that day I guess. I may try 24/0 again this winter as temps drop and I'm running autocobs so may need to for temps.
 Timers can be fiddly things if you've got the segment timers,especially if your well medicated lmao.
 Timers can be fiddly things if you've got the segment timers,especially if your well medicated lmao.