i lapped em not much
only to make the spacer even with the core..
btw.. is the core on top or on the bottem of the cpu..
i mean.. if you have that piece of silicon in your hand.. with the actual core-side facing upwards.. is the platic on top or on the bottom????
just curious
and are the backsites of the cores also perfectly even?
at first the silicon cilinder is cut into slices.
and then its polished to obtain ultra-flat wafers.. (only one side)
and then the steppers comes into play.. blablabla..
taken from
www.asml.com.. makes steppers and scanners for AMD
did u know that ASML headquarters is 3 km next to my frontdoor

i've got an old stepping machine in the basement hehe
but if u lap ur cpu till halfway (or wathever).. the heat can be faster obtained by the coper on top..
but anyway.. my cooler sits even on the core.. and thats where the gain is from
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OC'ing is my middlename