johnkn,
You are correct. I began walleye fishing in 2003. The vast majority of the time I troll. We typically use large planer boards with a tow line out to them or individual small planer boards per line. The large planer board line is used to slip the release clip down. I have recently begun to use the smaller boards as my kids are older and out on their own and we have less "mates" on deck to help. You rarely see an outrigger on the lake. In OH each person is allowed two rods, so we use multiple rod holder trees in the gunnel rod holders. My typical setup is a triple holder on each side to the planers and a single on each side flat lining a dipsy diver fishing a spoon, deep diving stick bait, etc. in the western and central basin of OH we typically fish from 20-60' depth. Most boats have to run a drift sock off each side to get the trolling speed down to 1.5-3.0 mph. I will get you a couple of pics when I am out in the next couple of weeks.
