We did great off riggers last year, mostly pulling harnesses. Cores/coppers were also good. Dipseys were hit and miss for us. We may have to go with longer leads. You're probably going to want to troll slower than 2mph when dragging harnesses, but if you want to go with a dipsey/rigger program, don't be afraid to get up to 3mph pulling sticks. This CAN be effective when the water warms up (73+). Don't be afraid to use coppers over cores either. out 150 and 200' were on fire last year. Did better on those than most of our cores combined.