I would like to see you replace the cree CXA 2540 with a more efficient white cob. The CXA 2540 shows 83 lumens per watt which is less efficient than than most lights. The current CXB 3590 is producing about 160 lumens per watt and is a very effective led at producing.
You don't need 5000k cobs you need 3000k because your monos have blue. With simple white and blue you can veg plants perfectly.
Post the umol/J of each led you're using and you'll see that it's a sub par light. Maybe compared to mars and shitty Chinese panels you're doing good but here on this forum your lights are sub par. I'm guessing based on similar lights your monos are about 1.6umol/j and cree CXAs are 1.3umol/j.
My 800w 16 CXB 3590 ran at 50w per cob 2.4umol/J ~160 lumens per watt light covers a 5x5 with higher PPFD and a more even foot print much better than your "record breaking 1200w light".
Thanks for your suggestion, the reason we don't use 3590 is it's really expensive and we need bigger heat sinks to solve the heat dissipation, also we won't drive them at 50w per cob as it's a little waste, as it totally can be drived at 75w at least, it's good for DIY but not good for resell, we ever tested the PPFD of single cxa2540, cxb 3070 and cxb 3590, all was drived at 50w, but the result didn't show much difference, around 15%, the only big difference is price. the money for one cxb 3590 can buy 4pcs cxa 2540, even if you drive one cxb 3590 at 80w, it's still less than 4pcs of 50w 2540, we will upgrad to cxb 3070 in next genernation.
The monos of our lights are designed to work for flowering stage, 5000k is for veg, and we also have super bloom and super veg spectrum monos for people to choose.
Sorry we don't know how to test the umol/J, but we use Apogee to test PPFD at 4'x4' from different height
