There are several methods that have been used for determining the actual depth of the downrigger ball when trolling. The most important thing to remember is that the counters on the downriggers are measuring the amount of wire cable out, not the actual depth. The actual depth is affected by the speed the boat is travel
What # test for trolling KINGS??
The Evolution of Downrigger Fishing: Optimum™ - Cannon
The Evolution of Downrigger Fishing: Optimum™ - Cannon
Downrigging for Great Lakes Salmon
Determining Downrigger depth when Trolling – Lake Michigan Angler A
Pink and chinook salmon hybrid result of natural reproduction
Selecting Downriggers
Putting It All Together — The Art of Trolling by Capt. Dan Keating – Great Lakes Angler
Trolling tradition: Lake Superior angler would rather have salmon - Duluth News Tribune
Balls Deep? Determine Trolling Depth with Cannonballs (6-16 oz) for Salmon
Wisconsin Charter Fishing News, Lake Michigan Fishing Reports, Milwaukee Charter Fishing News
Trolling with Downriggers for Salmon and Trout – Lake Michigan Angler A
Lake Michigan King Salmon Fishing: What You Need to Know
Blog — Articles — Jeff Goodwin Fishing
How to Fish for Salmon on Lake Michigan