I think you should get the light as close to the canopy as possible. The growzilla is a great idea, I also really like the lighting profile of the two bulbs together.
Photosynthesis is a process which occurs in steps, so as the bulbs pass over and especially under high levels of flux, you 'use' this work only momentarily as the light is captured to energize an electron for transport chemically... and all of this takes time. Not much time. But this is why a light mover can be efficient, a plant cannot use all the flux thrown at it, all the time.
Honestly best practice with a light mover is to perhaps to try and synchronize its movement over the canopy as to produce an experimental phasing of your plants biochemical systems. There will probably be a sweet spot for your room your genetics everything you know? All those factors too.
To use those lumens you got you need CO2 and climate control over temperature and humidity. Your plants shouldn't need the light to heat up to over 85 degrees, they need the light to heat closer to one hundred momentarily in the upper canopy to really pull transpiration outta the plant... If you can also feed them with proper nute profiles and properly set ec levels...
I think twelve feet is too long if the mover is slow and lets the plants get 'cold'. But it is not beneficial either to pull up the light for more coverage. Inverse square law is a bitch.
I would use those led panels in combo on a row of plants selectively throughout the grow... They definitely help to fill out calyxs' faster than an hps and better than an MH. And fuck that waiting around for flowering to finish up.
1ks will definitely be the cure for you, especially with those growzilla's. 200,000 lumens god damn -Just keep them air cooled and in tight on the canopy where it means something.
You've probably got the flux needs of your plants about right. Don't skip on good bulbs either, -And those hids will really help the leds work!
Congrats on the equipment. I hope you're running sog and 'chemical' nutrients in some bastard hydro setup that would make fatman squirm... Air Assisted Atomization! Air Assisted Atomization! For that size set up, it really makes sense. you'll save so much on buying nutrients. and time. and waste. (but maybe not setup costs)... damn. maybe next grow huh?
