yeah, me got 29/30C idle and 43/44C load running at 2.9Ghz, also result after lapping...
also agreed with bro clawhammer, lapping is more of interest eventhough only reduce 2-3C, but satisfied lor, result of our own effort
currently using 'cap ayam' thermalpaste, plan to get Tuniq-TX2 after this, maybe can reduce more temp

what do u mean by closed or openend casing? my casing originally just normal old style casing, i modded its top and side panel by putting acrylic and fan (12cm on side panel as blow in and 8cm on top as blow out, in addition to 8cm blow-out fan at the rear, also made another 1 blow in hole at the front with 12cm fan, total 2x 12cm blow-in, 2x 8cm blow-out), so i guess airflow of my casing is at optimum level already...
everything about lapping i learnt from my friend, which he learnt it from IceMocha's thread, managed to make my gemini's base quite shiny, but still not as good as IceMocha's lor

for real, i dun know lor, never use it before, but some reviews say so coz its water content more than MX-2, can preserve its moisture even after few days use (that's what the reviews say la)...

waa, diamond dust?? not expensive ka bro?

from that reviews, MX-2 is behind TX2 and AS5 la bro, but dun know whether its true or not

i bought 2nd hand 1, so its base was oxidized already, so i started with 800, if urs still new, i think start with 1000/1200 grit is ok lor

and definitely dont lap the proc, unless the proc is out of warranty or u r very rich and dun mind about the warranty

yeah, agree with u bro, rear and top should always be exhaust, blow-in should be front or side-panel fan....