Right, I'm going to lap my heatsink this weekend.
Before I do, though, I just want to make sure that I'm definately doing the right thing.
From what I understand, the best thing to do is to secure the sandpaper (starting with the courer types, like 400) to the glass, and slowly and gently start moving the heatsink base over the sandpaper in a clockwise/anti-clockwise fashion? Then, move onto the next grit, such as 600 and so on until you get to the finest grit (2000).
One thing I'm a bit unsure about is when people say its best to bevel the outside of the heatsink's pad first to stop "stuttering". Do you just take a courser piece of sandpaper and slowly rub along the edges of the pad first?
Thanks all.