In reply to Martin Wing:
> Also at Degla the sections of the Black you can link up with on the Red are all fine.
> Only really Black if you're going really fast.
Agree, the hardest bit to actually ride on the black variations if you aren't going at speed is the final big climb on the red after they rejoin for the last time.
Penmachno would get my vote if you were willing to go further although at the moment it is a bit eroded, presumably by winter storms, and has a few fallen trees across the trail