So I bought a Noctua NH-D14 cooler (see image) for a Core i5 2500K. It came with Noctua's own HT-H1 thermal paste. Since this paste received some good reviews I decided to stick with it instead of Arctic Silver 5. The thing is, the paste is really thick and difficult to spread. To begin with, I tried using BT's own method to spread the paste on the CPU. This involves using cling film and spreading with a finger. Alas, this method didn't work too well as the paste simply stuck to the cling film and refused to spread well on the CPU. I've tried rotating my finger under the cling film - that didn't work either. Result: CPU idles at 48*C. Since the HSF doesn't "rotate install", when I simply inject a grain sized blob of the paste (without spreading) and install the HSF, the paste doesn't spread at all and the CPU idles at 50*C. So getting a little puzzled and after using TIM cleaner for the nth time, it's time to ask those wiser than myself! Got any suggestions?