Hey dennis i run mine 100 to 150ft back off inline boards and fish them shorter leads in shallower water if they bottom out shorten leads. Google depth chart snd you'll find them online if you have smart phone find and download to it. As far as leader length i go 6 to 10 ft. I like to run a 30 diver with 10ft leader and small deep diver crank usually crank runs 3ft or so below jet and great action at slow speeds.