Is liquid cooling (Novec or something similar) recommended? How much further can the "modified" boards be pushed, and is it worth the hash increase?
Whitefire990 / Zetheron have done a lot of work on this - because of the cost and performance of the card, the cost to water cool it and run it at maximum efficiency is actually worth it - per them.
Were going to have an installed waterblock option available for purchased that will come on the board when you receive it.