Re Raven
It is muddier than the Gorlech and there will be a lot of puddles if it has been wet, but it is still rideable in all weather conditions, and if you can ride the Gorlech comfortably then you can ride the Raven. It’s not a very black trail. I think the blackness has more to do with the physical effort required than the technicality (everything is rollable bar the dropoff at the start of the double-orange bit, which you can just ride around). Definitely worth a shot, and if it’s not your cup of tea you’ll find out soon enough on the first black section and then you can carry on around the green and blue trails which are straightforward but still a real hoot.