For crankbaits, I like to find that particullar lures sweet-spot.Start slow and creep up untill you get the nastiest vibration,if you go past ,it'll roll or go away.This year we also started slowing down with in-line bucktails with great success.Let out your line and add speed untill it breaks the surface, then back-off a touch.I dont know this has worked so well, but it has.