a cheater is roughly the half distance of your canon ball set depth ( 60 ft your cheater will run roughly 30 feet down from the bow in the fishing line)
If you want to "stack" rods to get another controlled depth from the same cannon ball you can use stackers to introduce the second rod (10 to 15 feet higher then the first mainline) and throw another cheater over ...this setup will give you lures at 60 (first mainline) 45 (second mainline) 30 ( first cheater) 25 ( second cheater)
As stated cheater lines vary in length ...the longer the line the more effective but the water needs to be calm so as not to tangle on turns... shorter cheater lengths allow you to make more aggressive turns and change the speed of the presentations from one side of the boat to the other.
Lake Huron has the exception for two rods per person but Georgian is only one....make sure you know how many rods your allowed per person before "stacking rods" to accomadate the number of people on the boat...
elastic bands for your cheaters are effective but as an option you can simply put on removable split shot (above and below)the cheaters snap..
Are you confused now ???lol