A cheater should be legal, if one or both lures are spoons.
Ontario regulations :"Two lines may be used when angling from a boat in parts of the Great Lakes and for ice fshing in many areas. A fshing line must not have more than four hooks atached."
Hook – A hook includes a single-pointed or
multiple-pointed hook on a common shaft but
does not include a snagger or spring gaff. The
number of hooks includes any single-pointed or
multiple-pointed hooks that are part of a lure.
Trolling with current should be just as good, but requires increasing GPS speed.
Is the current in Lake O. the same at the surface S down 50 ft? If so a spoon over the side at the surface would let you check the action.
Physics and fishing. Color matters, but not necessarily the way we think. Light is different under water.
Physics and fishing
https://thegreatlakesfisherman.com/lure-color-selection/
I feel ya. I bought a 14' Big Fish. Lovely on flat water, but I've learned I prefer Lake O, plus I live 5 minute drive from launch ramp. 14' greatly restricts the time I can go out on Lake O. Too many choices. Good luck picking your next boat.
That's it for this year and place. Some areas of the province do. Each year it may change. To the best of my knowledge it never changes mid year. Watch out for species and waterbody exceptions under the general zone regulations.
I've never seen it that bad. My daughter wanted me to take her sailing once. I checked the forecast and it was for 4 to 5
METER waves. We didn't go sailing.
No mater how big you're boat is, it can and will get too rough some days. My lessons learned was
1. know before you go out.
2. Wait for a better day.