I've not fished it for a few years but I've had a few out. I find that if it is busy the fish switch off. I done well on halibut pellets fished near to the island and the margins fish very well, but the island is snaggy in places so watch out. Last time i fished it I had some idiot casting from the otherside of the lake into the margin of the swim next to me, so watch out for that!!! Quite a few get caught on the top aswell so that's worth a try!
The bailiff is a nice guy and will give you advice.
If the specimen lake is busy the match lake is always worth a cast, good for a bend in the rod and there is quite a lot of mid doubles and 20,s which come out quite regularly.