The Novec didn't let me overclock the Neptune's enough to make it worth it. I am waiting for the Monarch's to see if I can overclock them if they ever ship.
Do you happen to have some SP10s in your disposition to test with Novec? It would be very interesting to see what the performance would be. Taking in consideration that you can pull some ~100W more from the PSU, by removing the fans, and with Novecs decent cooling...
Can you actually just put the whole miner in a tub full of that stuff?