My experience is on a river so I don't know how much will apply to Georgian bay
Fish the steepest breaking weedbeds you can... I fish the point getting hit with current... you'd look for wind blown I guess
Bright colours like clown... fire tiger and even UV colours work well
Don't be shy to search with a spotlight... it'll cut down your search time A LOT... I look for fish in 3-10 feet then troll the 15-20 (wherever the weedline starts to grow) foot depth adjacent to where I located the fish... I do NOT change my target depth in fall when night fishing as others suggested... I run the same lines I do all summer...