and about the lack of definitive proof, but really...
...a skeg is usually used to counter the effects of the wind, such that fewer correcting strokes are required from a paddler to hold a straight course. Is it not inevitable that a boat covers a greater distance with less effort with its skeg deployed?
PFD's (Life Jackets)
Canoe / Kayak Anchors
Touring Kayak Paddles
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