Interesting article here…
https://traxion.gg/fanatec-csl-dd-wheel-base-and-csl-pedals-review/
"Despite the enhanced detail in the force feedback being present, it can be hard to sense it at the limits of adhesion when using the 5Nm setting. Kerbs don’t quite give you that kick through the steering wheel that you would get if more power was available, and during a big slide, there does come a phase where you are left slightly unsure of exactly what the car is doing underneath you.
As it snaps and you wildly spin off into the barrier, you are left wishing you had that little bit more weight mid-corner in order to prevent the incident. It’s a shame to have so much resolution present, but not always be able to utilise it. A bit like having a brand new 4K TV that’s the size of a PC monitor."
So fidelity and as @Alex says, resolution of effects may be the more redeeming feature as opposed to outright power and heft. If that makes sense.
I’m still no closer to a decision though although that’s the reason for upgrading. To have a better feel at the limits of adhesion.