The Ruedi Supersteep!!! Blast trail down on Chur. The upper section itself is fast, with some steep curves and big roots (check your brakes, what's that smell?), but the meadow up to the trail re-entry is killer. You need a good suspension setup and be able to power through without brakes, but then it gets a bit steep and technical again, and after that section you can let it go again, including the meadow to the fire road.
After that, it's time to relax until the second part goes through the meadow at the hut.
Now it gets steep and fast in the gully, but the exit then back onto the road curve is rather tough.
From now on, it gets really fast over the root field. Be careful here, "construction berm with cable" - because now it gets a bit rocky and steep, but there's already a nice line to the left of the cable.
After that, it's a bit of a bump to the exit - slow down a bit here because the ridge is narrow, if you can handle that, then it's easy to get to the Grida.
That's all.