A guy that I use to work with use to fish for them in the Delarware with nymph and willybuggers. He told me that when they are mudding there easier to catch. I never tried for them in the Delaware.
I use to catch carp in florida. I use to chum them with white bread then cast a white marabou fly, and wait till they worked their way to the fly. caught a few to 12 pounds. I have a picture that i need to scan. los of fun.