i dont use them for slow speeds, but 2.4 to 3.5 they work better for me and produce even better than the downriggers, even during the summer months. this was the last week slow trolling with bait for me and all my salmon were on jims jigger with golden shiners fishing slow. last year i saw salmon biting the orange jigger clip, i roll cast out a streamer and immediatly had three salmon chasing and fighting for it right next to the boat, only happened once but it was heart pumping to watch