Mated my 2x EVGA 1080 GTX FTW cards to a couple EK Acetal + Nickel GPU blocks and EK backplates with an EK FC Terminal Dual Serial block. Re-routed some lines and replaced some faulty fittings that were leaking as well. For coolant I used Mayhems pastel white.
Temps load (Dry):
CPU: 42° (previous loop)
VRM: 45° (previous loop)
Coolant Temp: 33°
Temps load (Wet):
Coolant Temp: 39°
Dropped temps almost by half under water.
Firestrike Extreme (Dry):SCORE: 16 125 with NVIDIA GeForce GTX 1080(2x) and Intel Core i7-4790K.