I don't even know how that is possible. I can hold around 2000mhz with temps in mid 50s. Mind you to be fair I did water cool my card during the hot part of the year, which was pretty darn long this year.
I should do some more testing now temps are dropping.
One thing I have noticed, though, is that this looks nothing like the original Hybrid "kit" they were selling that mysteriously vanished from the shelves. Usually when you got one you would use your cooler guts but this looks like it's all been changed.