In step 4, it says to screw the posts directly against the motherboard without using any of the included nylon washers. My motherboard has a bunch of traces right next to most H/S holes, there's no way in hell I'm rubbing them with metal.
I haven't installed the block yet but I did screw in the posts with nylon washers in between. I attached a picture, let me know your thoughts. It does elevate the posts by 1mm approximately.
Thanks for the replies. I built my PC with the washers placed like in the picture, no issues at all and at least I'm not scratching the board. Temps are great with a pretty tight spread across all cores.