Joined on 08/12/13
Lucky

Overall Review: Got Hynix CJR. Week 1933. One pair can reach 4533 on MSI Z390I. The other pair reach 4400. Haven't tested on Ryzen yet.
Decent

Pros: XMP is no issue on Asus Maximus X Apex or MSI Z390I GAMING EDGE AC with Intel 8086K. On MSI Z390I it can run MemTest Pro at 4266C17 at 1.4 V, 4533C18 at 1.42 V and 4700C19 at 1.5 V. 4800 is unstable due to BIOS or IMC limitation. However increasing voltage at lower frequencies doesn't reduce CL. 4266C16 is not possible. On MSI X570 Ace it can run MemTest Pro at 4600C17.
Cons: It's not on MSI boards' QVL. I think G.Skill didn't send samples which made this model lack BIOS optimizations.
One fitting missing
I ordered two sets of EKWB EK-ACF Fitting 10/13mm - Nickel (6-pack). I was surprised to find one of the boxes only has five fittings. I had enough to finish my loop so didn't bother to contact customer service.