Damping
Preloads are dead easy to adjust, the 1/3 law and you get it nearly perfect.
But strangely, i find it's damping that is overkilled on 1100GSes. People say it's telelever taking more than average feedback from the road compared to regular fork shocks, but i find it's acctually the rear side kicking your arse (we have very shitty roads here) much more. Shaft drive effect? Mostly i run on damping adjusted to minimum to make the ride smooth as possible on "sharply" kicking roads.
Also it helps to put the front to "offroad" ("Gelände", 4th or 5th click) mode, i find this also notoriously reduces the feedback from very sharp bumps (probably optimizes telelever's angle for such use?) from the rear like a corrugations on our gravel roads. Don't know why, but also on offroad mode, if the front is higher, it builds up more confidence in me taking the curves, just feels like i have more control. How is it with you lot, you prefer the "Strada" (1st or 2nd click) settings on the curvy roads?