Alton there is no fishing from the dam wall, so you are limited to the banks either side.
I actually tried to avoid the dam area for carp fishing, sailing club, wind/kite surfers, the remains of the water park buoys where everything was tethered, and fished as far away as possible.
A southerly or south westerly wind pushed fish to the other end of the reservoir, where depths and banks were more manageable. I did occasionally have to add long legs, banksticks onto my P1 pod.
I also used a lot of chopped or half boilies to stop rolling down slopes, although the deepest I found was the old stream bed(s) at 22feet.