I used 300>500>800>1500>2000>2500 lapping on a mirror. I used a spray bottle of water to wet the paper a little and act as a lubricant. Once I finished, I used some brasso polish to get rid of hair line scratches, and then cleaned the surface with some arcticlean TIM remover. Once dry, I used a haze of AS5 (You hardley need any. Just rub some an and wipe it off) on both the heatsink surface and CPU IHS. You are then good to go
You guys think this guide is good?