My ten pence from my experience.
I agree with @trail_rat. It’s a pretty tame course which has a lot of fire road. I got overtaken by a lot of 100mm hardtails with thunderburts or racing Ralph’s etc on here as its the best place to overtake and not get stuck behind slower riders (like me)
Even if it snows there’s that many riders that a line soon appears for you to follow on decent mud tyres. Its also one of the best courses for standing up to a lot of riders and didnt seem to get too bad or too muddy.
Doesn’t take long for the slabby rocks up top to ice up when it gets sub zero
This was the worst part for me as a lot of tired riders either stopped to push or fell off here. I wouldn’t want to ride icy rock slabs with spikes. I just rolled it and didnt use my brakes once it was clear and didn’t have any problems.
I guess if the weather does turn and a lot of riders drop out then you would need them.
Apart from riding it, Ive been a mechanic for a team twice. One year i spent all my time defrosting gears, the other year trying to get mud out of the gears. They were all fast riders and overtook in silly places and went off the main line and through less hard packed lines.