Old School Days v/s New School Ways

As many of you know I’ve been in the industry for a very long time. Been primarily old school for 35 years recently I made the move to change out some of my HPS with LED been skeptical for years maybe just stubborn lol. But I made the move putting in 6 spider farmer sf4000 but I kept 3 dominator xxxl reflectors with 1000 watt systems down the center. Must say I was impressed the spider farmer lights have no problem admitting that, but I’m thinking now it may be time to try some different nutes been using GH products most of my life never changed never even thought of using something different. So point me in the right direction guys. Give me your opinion of what you think I should give a try. Here’s a couple pics of my grow at this point. Oldest plant is 33 days. Youngest 23. So let me know your thoughts help and ole man ou.

Wow, 33 days from flip to 12/12 ?
Don't fix it if it aint broke, you got that op dialed in. I see you run a burner for co2, how many ppm?
what medium?
How much can you yield from how many square feet?

I run around 1500 ppm but it one of those set it and forget it just keep feeding it gas. I average 7-8 oz. per plant. Depending on the strain and how much I wanna stretch them