Trolling has been tough on stockton this year for me....no idea why. For long lining cranks, each person fishing will do well with 1 8-9ft, med heavy power, moderate slow action rod (OKUMA Classic Pro rods are perfect for 30 bucks a pop...but any downrigger rod works great). I would highly recommend metered braid line (power pro depth hunter), but as has been mentioned simply marking your spot with a sharpie works too. Tie a snap to the end of the line and everyone put on different color flicker shads (size 5,7, and 9 are good). Let out 100-200 feet of line out (vary this as it effects how deep your lure is going). After catching a few fish youll be able to put together a pattern of best color, size, and running depths. Trolling speeds of 0.5-3.5 mph has been effective for me, usually i like 2-2.5. Dont be afraid to go way faster than you would think...aggressive fish will chase it down, especially in hot water. I like the soft action rod with the no stretch braid, seems to give me the best hookups, and keeps em on for the long ride back to the boat, more of a personal preference though.
When i detect a bite, i immediately put the boat in neutral and begin hauling in the fish...other fisherman in the boat also reel in to 1.) avoid tangles and 2.) many many times get a bite on the retrieve. I often times will simply make a U turn and go back over the area where i got a bite. Quite often you can triangulate an area where your getting multiple bites..especially if you have good electronics..then simply go to where x marks the spot and begin a more methodical approach to catching the less active fish. Its a great way to find fish and quickly pattern them. A rubber net, good pliers, and no carpet in your boat will also help you spend more time fishing and less time with a walleye pinned to the boat carpet/net with 2 sets of treble hooks.
Get the precision trolling app. Its nifty if you dont wanna fork over hundreds for the book.