Hmm. I somehow expected a little bit bigger win hearing from Shoggy about big effort put in developing block and mirriads of variations tested. Current result combo (of both temps+restriction) runs a bit short for 'replacing king' in my eyes. Imho HF still occupies 'sweet spot' of overall performance. I won't count silver version, as it's price simply is in too ridiculously expensive area, but half degree win of this more common variety of block in temps probably can be catched up by full-nickel or full-copper versions of EK's HF, and you'll get as bonus better flow (especially now when one can buy replacement top to fit two 1/2"ID BP CFs aswell). I aplaud efforts of Aquacomputer, but my choice of full nickel HF as top block remains unchanged.
Imho this test shown that microchannels like that of HF's && CPU-360 have more potential to get to 'sweet spot' of temps vs restriction then that of micropins design, which was refined further from Apogee XT into this new Kryo WB, and i'm guessing that next iterations of Koolance's and EK's cpu blocks will be able to reach little bit better results with even more thin and deeper microchannels then current ones in both flow & temps unlike micropin arch that seemingly has hit limits. Afterall, it's easier to make thinner channels then thinner pins material strength & machining difficulty wise ..