I'm not a very experienced drop shot fisherman - really only using the rig when I can't get a bream bite under floats. I've always just used a heavy split shot for my drop shot weight. It will pick up the slime, but I can't imagine that there is a weight that won't. I guess you could try pegging a bullet weight, but even those seem to pick up the junk when I Texas rig a plastic worm for bass.