I'm generally in the camp - after experimenting some myself - that this 4-mic mixing stuff up on a stand from the same place is kind of pointless. I had this debate with a buddy today. To me, unless something is vastly different in the sonic character of one mic, combining them just makes kind of a mess. Here, you have two good pairs of AKGs. Combining them together won't really make them sound better.
If you insist on doing it, I'd use the hypers more like a center channel and run them almost a-b or at most PAS, not in DINa. In DINa you're making them even more redundant with the CK1x.
FWIW my favorite 4-mic mixes are either omnis + hypers - to give the hypers a controlled amount or room noise - or the DPA 4021/KM150 mixes Dan Lynch used to do. The ORTF 4021s plus the extremely crispy and direct sound of the 150s pointed almost dead ahead was a nice contrast and gave the 150s a nice character while still getting that great direct sound they get. Even though this is technically "wrong" I think it worked. When I've run, say, 4 channels of Schoeps or other mics by the same manufacturer, I've been less pleased.
I'd definitely not throw in that AT822; I'm pretty sure it's just flat out inferior to your AKGs.