First Grow of the Season - μSetup

Lights are back at 80 W, I've being watering every 4-5 days. Defoliating as the Lady puffs up and upped again the Nitrogen. The Black Jack CBD buds are still pretty much hollow compared to the Special Queen(s), we'll see tho, have a nice week! Anyway, after the summer, I got a new bag of coco coir and pots (5L) to avoid overwatering and the return of fungus gnats. Same setup as always though, the μSetup (micro), the keyword: efficiency. The Tent is a Zelsius 40x40x120 cm, substrate is Wilma Cocolite, light is Mars Hydro TS1000 dimmed down and the nutes are Terra Aquatica TriPart. I'm probably going to have problems with watering, humidity and light penetration but still, I wanted to maximize the productivity, I always thought that growing on bigger tents was easier but too inefficient, I don't know, will I regret ditching the 3x3ft tent?