Thanks again! A lot of cooling optimization is affected by your physical location. Summer was rough, it's a lot more expensive to maintain your hashrate with warmer ambient temperatures.

I chose to operate in NC rather than CA because of weather and electricity prices. (I also got a sweet deal on commercial space)

Electricity access can be a major issue, for my setup I had to purchase my own dedicated transformer for a 120 sq-ft. space (not cheap)! But when you customize your space, you get options like integrally surge-protected outlets for the whole setup.