hey mate,
like all the others said use a very small lead because when the carp gets a hold of the rig if it feels any tesion it will run for the the nearest snag.
also make sure all your rigs are neat and tidy and little bigs can make the difference between a catch and a blank
Also use natural bate or the fish like maggots or worm becuase if you use your watercraft knowledge you will know that on the lake all the big carp would be in the silt seaching for the natural baits so try to use some normal things eg maggots, corn, worms or meat ok mate hope that helps