You will be cheating yourself out of final results, and giving yourself not a DARNED CLUE about what the plant's potential is. You want it to eat EVERYTHING as far as nutes during the final flush, or it'll be harsh, taste like ass, and even leave funky fucked up black ash when you try to burn it. Those plants need FULL LIGHT at FULL INTENSITY for as LONG as possible to really accomplish this.
As to 12/12 vs 10/14 - if you're watching people split hairs, why not just do what has been working quite well for people that know this plant through experience since the 1970's do and has proven is at least, "Good enough?" There's no need to try and have the perfect grow early on. This isn't supposed to be all stressful and "has to be done a perfect way - that is JUST NOW being "discovered." People have grown this stuff for hundreds if not THOUSANDS of years, and just by letting the sun do it's thing, and then "picking it."
LED lighting scientists have been working hard to develop UV and far red lights because, those spectrums of light (that also age the fuck outta people's skin) cause the plants to say, "OWW OWW OWW! WTF?! STOP WITH THE INTENSITY ALREADY - WILL YA?" (below 400 and above 700 nanometers) and that IS the shit that also burns your skin. Many "experts" have, for MANY years, generations even, said, "Below 400nm and above 600mn don't do shit - so that should NEVER be considered in measuring the PAR value of agricultural lighting, because it does NOTHING." Science isn't perfect, and neither are we - but we're still alive, so, maybe we need to just - you know - kinda chill a bit, eh?
So, yeah, that additional "OWWW OWWWW OWWW" (says the plant) will result in GOOO GOOOO GOOOO come the stalked trichs, just so long as you don't burn the actual green leaf/calex material and bleach it out. That stops the plant dead in it's tracks, becasue it knows to get bigger will cause more tissue damage, not just the "Oww oww oww" that can be handled with "More yummy suntan oil/skin conditioning sticky ooze production."
This causes them to desire sun tan oil - which they promptly sacrifice even their own FAN LEAVES to pump energy into cranking out more of that sticky shit.