I didn't have time to delve deep into what Kuku actually did, but I do know that when I don't think about the FFB, (while driving) that's when it's best. Somehow it's just really balanced and controlled throughout all the ranges and phases of driving. Something with balance and blending. I found with the DeltaX I was able to lower the FX a bit and still retain the same detail. Previously the FFB Histogram would generally be centered around the middle forces, but now there is more activity spread across the whole spectrum of the histogram, which would seem to indicate that the forces are more evenly balanced and controlled in their own relative force areas. Each car is different too, so it's quite interesting to watch.