I don't know if lapping it will be worth it - the difference is marginal at at most probably 1C due to the convex shape of the i7 IHS. If it's not satisfactory (i.e. 5C from where it should be), and there's nothing else wrong with your loop, I would then look into maybe lapping it or getting a new replacement block.
thanks for the input guys- My cpu is already lapped fyi. I will check the heatkiller with a blade and post a picture. I have to swap out computers this morning so I can still get on the internet and then drink some coffee, then I will get started.
well razor test shows a slight hump in the middle of the HK.
I will assume this it to put more pressure in the middle of the cpu die.
While I am a bit dissapointed in the finish on the HK 3.0- I think the convex shape is purpose made, and so i will not be lapping it at this time.
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