After long last, the GPUs are on water.
Full list of things done in this mini tear down
-Hydrocopper blocks installed on GPUs
-Changed top tubing route to run next to the top radiator as opposed to below it. Makes it easier to get to RAM, fans, fill port on res, etc
-Setup a drainage valve at the bottom of the GPUs. This is the other lowest point in the loop. Will make drainage from top radiator to bottom GPU much easier
-Cleaned up GPU power cables and added some cable combs
-Replaced the pump's 4 pin PWM connectors to black connectors. Blends in better with the board
The waterblock installation wasn't TOO bad. I had never put waterblocks on a GPU before so took my dear sweet time with it.
This youtube video was also very helpful. The hardest part was definitely disconnecting the 3 fan cables on the stock cooler. The single RGB cable on the front wasn't that bad, nor did I have much trouble connecting the RGB cable on the waterblocks.
Need to finish bleeding the system, there's water stuck in the GPUs so gotta get that done before running any benchmarks. But aside from that, feeling very good!