Constructive Criticism - What suggestions do you have?

I would grow 16 (4x4) plants in SOG 6l pots, without topping, lst, or whatsoever flipping them sooner than you did into flowering 72"" in height is enough to do so and it will only benefit you as you'll get your harvest faster. (eventually 9 plants (3x3) 9-12l pots is an other option is you prefer a tent less crowded, finally 4 plants (2x2) 15 l pot is another option but gr/w/m² will be lower for sure) I have the same height as you in my tent 90x60x180(3x2x5,9) and i grow 8 (4x2) plants in sog without trouble for most indica dominant up to 50%/50% hydrid flipping into flower after 2-4 weeks of veg when they are 20-30cm so they reach 60cm to 1m20 depending strains and sometime phenotypes. Sativa and sativa dominant strains are prolly doable as well with 1 week of veg or straigth 12/12 from seeds. Grown some auto twice in the same way without trouble. Have a look at some of my latest diaries you'll see how to proceed and what to expect in the end. You can also search for grower Leonweed10 on growdiaries, he is the true sogmaster around here. my point is mostly that doing so will prolly improve your gr/w/m²/week spent veg+flo significantly. Happy growing.