It's funny you should mention the corn M.
Me and a mate were out carp fishing on a local lake one day. He hadn't been to get some corn so we stopped off at the local dub dub's shop for some. We both casted out once we arrived to the lake and both using the same rig - method feeder. Don't worry if you're not following M, all will become clearer soon. I had the first take. About a 7lb carp. I re did the feeder and hook bait and cast out again. hour or so later another fish. same happend another few times before my mate was getting abit pissed off. I said in jest that it's that corn your using,