There is only so much suspension can do with a rigid axle.
Ideally you need an articulated rear axle with half shafts then it gives suspension the freedom to independently control each wheel.
It will be interesting to compare to the ARP4 to see how close they are the ARP4 doesn't have the constraint of working with existing chassis mounting points, it may or maybe not give it a subtle advantage?
The nice thing is people have the option should they wish to pursue it!
