I have been trolling for bass a lot lately, did it just today matter of fact. It's pretty awesome. If you can drive around and "graph" you can troll. I learn a whole lot about the bottom of the river sitting at the console trolling a crankbait and watching the graph. I use shallow diving crankbaits 95% of the time. My boat is 18.5 ft center console (wide boat) with a 50 hp 4 stroke mercury. With no current or wind about 2.75 mph is as slow as I can go, and that will flat catch em. Hooked two nice smallies today about 2.5 mph and 46 degree water. I usually try to troll upstream and get closer to 2-2.25 mph but I'm not sure why because 2.5 seems to be where I get most of my hits. I sometimes troll downstream and that's usually around 3.25 mph and catches fish surprisingly well. If the plug says it will go 2-4 ft it will go about 10 at the speeds I troll (variable depending on length and diameter of line). A 4-6 ft plug will troll about 12-14 ft. Shift into neutral when you get a bite and leave it in neutral. I have never gotten bored trolling. I get much more bored chucking crankbaits and not contacting bottom. I used to just drive my boat through the deep holes in Order get to the shoals and fish soft plastics. Now I catch fish trolling through all the deep holes on the way to my casting areas, while marking trees and humps all along the way