Well I am doing my 180 build and only have a 40g breeder tank. I am doing the baffles tonight with overflow on the left with skimmer, than bubble traps to the middle with the return. Than on the right I have the refugium with 25% flow draining into the middle going through teeth at the top of the baffle.
What you are showing is badass and beyond what I am doing.
Actually I feel completely clueless after looking at these other large tanks, and need to know what these people do for a living (holy crap)