The weekend, while resting a bit on Sani, I made proper use of the crash bars. 
Hey OomD. How was Sani Pass? We going in two weeks
It's quite rough. The melting snow, it seems, took most sand with it, leaving exposed (and very loose) rocks in its wake. No fun negotiating those switchbacks while the earth beneath you also moves. My Karoo 3 has chunks out the back tyre the way I was slipping around. Make sure your tyre still have deep grooves (or high knobs).
That being said, I consider myself of limited skills. This was my third Sani trip, and the first time I rested a bit. Very grateful for the people that stopped and help pick the bike up!