I haven't fished the main lake for a year or more as it's often bivvied up on a lot of pegs with lines going all over the place so I normally fish one of the other lakes. There are a lot of decent carp in and also a good head of decent bream, plenty of skimmers and roach. If you're pegged on the dam wall then expect maximum depth of about 8 or 9 feet max. I've done ok with the bream off there on paste at 13 metres and expect carp to show to it as well as I've had them to 16lb in the past. Feeder used to be good for the bream but you can get done by big carp if you go too light. Corn, paste and pellet probably best. Maggot will just get you bits every chuck.