EKE,
There's a UK RV news group at
http://groups.yahoo.com/group/rvsqn. You can read the messages without registering, but if you want to post then you'll need to register.
There are also news groups for each of the RV types which you can access via
http://www.vansaircraft.net. However you'll need to register to read these.
At the moment only the 3 and 4 are cleared for aeros in the UK. There's an issue with the strength of the tailplane on the 6, 7 and 8 which means that they aren't cleared for aeros. Somebody in the UK is building a tail for stress testing and the data generated will be sent to the PFA.