GideonTech.com has posted a review on the Arctic Cooling Freezer 7 Pro

In the included instructions it says that the surface was milled down specifically to work with their thermal grease for the best performance. Well, I don't know if that's true, but I'm always willing to give things a try, instead of cleaning the goop off the heatsink, I installed it as is. Don't worry though, I still plan to remove it and test again with the benchmark AS5.

Arctic Cooling Freezer 7 Pro Review