What you can do Duke is to use painters tape around the perimeter of the cpu and then lightly skin over the top of it. This works well for a chip you do not intend to be swapping out frequently. Otherwise I agree eraser is better around the cpu for usual benching purposes. The tape method is the one I used for the latest small form build which will be using a Boreas TEC for cooling. I will not be swapping chips in this anytime soon and it will take care of any condensation that might arise.
(Was that a magic cape you had on in the video?
)