i've fished from boats in this area & found that most anglers in newhaven(& charter skippers)meet up in the sheffield arms pub, near the tackle shop very early in the morning for breakfast, they will probably know something or someone helpfull.
nice to see someone using light tactics for sea-fish, if more coarse anglers were bothered , i'm sure they would enjoy the change of scenery, species, etc.
good luck ray