Covering a 4X8 area with COBs

I am new to the LED scene and didn't know where to start and I got a lot of valuable info on this forum so a big thanks to you all.
I ended up purchasing a Meanwell HLG320-A driver and 6 VERO 29's to start with. It is pushing these VEROs at 394 watts running at 1400mA at the wall. Then I purchased 2 HLG240-A and 6 VEROs and am getting 316 watts(3 VEROs) running at 2100mA. To my surprise, This will cover a 4X8' pretty well. I built everything myself from Rapid LED and Heatsink USA. These drivers are adjustable from 700-1400mA(320) and 700-2100 mA for the 240's. So far I am well pleased with the set up. So I am covering a 4X8 with a total of 12 COBs. If you crank the 240's up, you get quite a bit of heat so I am keeping them at about 1400mA's so I have a lot of room left to crank them up.
Thanks to everyone that gave me advise!
If anyone has any questions, I will be happy to answer.

Got Pics?

Sorry, no pics. I put 3 COBs on a 6"X36" Heatsink. I connected 2 of the Heatsinks together on 2'' Aluminum angle making a 3X2' unit and mounted my drivers on each end. I will try to get you a pic later. I am working on another unit right now. Cost is about 400.00 per unit. Can produce 600 watts. I am running at about 400 watts now. You crank it up and there is an increase in heat. I might decide to put a fan on each Heatsink if it is gonna cause a problem. But so far so good.
Thanks for the reply.