Oh you must mean that thing I get off as soon as I am sure teh chip works
Must be why I am running 3700 SD @ 11x247 (BH5) 1.5-2-2-5, etc @ 1.49 / 31-32c load (OCCT - stopped after 26 hrs @11x246 - boring

) on a BIX WITH an x800xl on a maze4 gpu. Or teh 9x300 on my winnie 3200 @ same vcore /TCCD and 37-38c load on just a hyper6 w/ 80mm panaflo m1a
I do the razor thing like everyone, corners first, then the straight sides and it comes off easy (no epoxy so far).
NOTE: the chips are slightly convex. So of course the NEXT step is to flatten the top of the core
2000grit max sandpaper on a FLAT glass plate - SLOW strokes (did I mention I ground telescope optics as a teenager heheh

) or better yet some 2 micron abrasives and less.
Thermalright XP-120/90 - BAD for this as I have found them to nibble off the edge of the core.
However my cascade WB and hyper6 have never given me any wear. I attribute this to the fact that these coolers are mounted w/o sliding over the core, unlike the XP-xxx (and give better clamping pressure, damn XP springs

)
I am getting a TT Big Typhoon (Screw down, not springs

)tomorrow, and after I lap it will try on my winnie and then on the venice that came with. I am guessing that the mounting method will give it the proper cooling ability that I never found on the Thermalrights. Will report back in a thread over the weekend.