For what it's worth, I have over 2000 track miles on my Kmack camber plates, they have pillow bearings, and have had no issues with the added benefit of camber adjustment.
The force that caused the shock to shear on the bolt is Horizontal stress. The pillow or floating bearing should solve that, main reason I bought the Kmack ones to begin with. With the stock setup on lowered springs I could feel it binding on aggressive turn in on track. The failure vertical is probably the bushing.
I think for street they would be fine, but for liquid paper and Ketema who are at the track a lot, they just won't hold up. One things for sure GC will have to significantly redesign the plate for serious use.
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