The new Karoo-3's rear tread is looking a good compromise for on-off road purposes . . . even the loose stuff, IMO (for a heavy bike).
The front, however, seems a bit more on-road biased.
For all-round riding, it looks fine for loamy surfaces [at moderate pace] and of course for bitumen ~ where the higher grip for braking is a big safety factor.
The front tread blocks look rather broad for those endless miles of loose-ball-bearing gravelly roads . . . but that's the compromise. A TKC or Heidi is always there as an alternative, on the front. Unless a more open Karoo-4 is in the pipeline !