In case the jest of the question is not all that clear to some, this should help. The front and the back of the chassis do two things or have two things done to them, together and separately. The first is both the front and back need to turn or be turned. The second is through weight transfer and mechanical movement they both will effect each other. The thing to recognize is because the front and the back are connected both physically and dynamically, the front will effect the back and the back will effect the front. I believe the more you can get the front and the back to each work independently, the more over all speed will be available. If the thought is correct, then there is speed to be had doing anything that will allow the RF to operate as necessary, without help from the back.
With the indoor season it becomes obvious under certain track conditions, the need to operate the RF from the LF area is not only possible but mandatory. What I'm proposing takes the obvious one step further, in possibly providing a reason to carry the same thought process on to low grip situations. There's an obvious shift in chassis design towards being able to hold weight towards the LR corner. I think what I'm asking depending on how it's answered, may lead to new ways of holding weight at the LR. But you won't be able to hold weight at the LR corner, if it's needed to make the RF corner function.
Kart chassis not only are but have moved in design to enhance function at the LR corner. I think my BS over the years on here about how a staggered solid axle works and the need and way to control weight on the LR, if you want to get the back to rotate or steer, has been a factor in altering overall thinking about stuff. Frankly I think if kart chassis are indeed moving towards or have already moved towards a softer LR area, it's because of new general overall understanding out there of how a staggered solid axle works.