Swiftech Apogee GTZ vs D-Tek Fuzion V2 As-Shipped

[Lukee]

Does the GTZ need to be lapped to help temps with C2Ds?

[Martinm210]

Does this also occours with the Koolance G 1/4" Compression Noozles ID 3/8 ?

I don't know, I don't have any Koolance fittings yet, but I'm trying to get a few so I can check compatibility with all the types of popular fittings on all the blocks. It's really not a problem to use the extra o-ring, you can take one from the original shipped barbs. There is a very deep recess there that holds it in place nicely. Generally if the 3/4" OD type compressions fit, you should be able to fit just about any fitting. The extra o-ring is just needed to fill in that recessed slot.

Does the GTZ need to be lapped to help temps with C2Ds?

No, I wouldn't, it comes in very good condition as is. You especially wouldn't want to lap it while assembled, it has a significant bow that you could make worse by lapping.

Generally I don't lap waterblocks anymore unless you somehow scratched the base badly. I do lap the processor IHS though, that can be helpful especially if you IHS is slightly concaved. That does void your warranty though.

If a base gets a little oxidation from fingerprints etc. I just use paper towel and your favorite thermal compound as a polish. It works pretty well and helps embed good TIM material into the pores of the base.