Diving Rapalas work for me when I don't have downriggers or the fish are up higher....Clown XRap 10 or 12 works good....60-70ft behind the boat...
You should try and get a diving plane of some kind...Dipsy Diver, Pink Lady, Jet Diver something like that and try some 3" silver spoons or Pro King Spoons, Badger Spoons, glow and green works good down deep also straight glow or glow and blue...blue/green and silver....you really have to experiment for your area...
Good Fishing!