Like everyone has said your not going to be riding alone!
As for the Cwmdown service you'll be able to chat to the other riders if for whatever reason none of the riders speak english the drivers are always a friendly bunch! The actual downhill run was designed to make it as technical/hard/fast as you want to make it, there are only two sketchy bits which your kinda forced into:
- The drop off the firetrail, which is a drop and or a chicken run which sometimes is actually tougher than doing the actual drop!
- And then there's an annoying (for me) off camber drify left hand bend which I always spaz out on!
Enjoy yourself, with 20 years riding experience you'll know what you can or can't ride, at the end of the day its a trail centre so nothings going to be stupid!