I've had several dogs over the years in the 45 to 55 pound range. My current solo boat is a Bell Magic and a well behaved dog that likes to sit in the bottom goes right between my legs and essentially becomes additional weight in the center of the boat with no effect on trim.
If the dog won't get low enough that you continually "bonk" it in the head while switching sides, then the dog moves behind you and you will need something up front.
Hardshell Kayak Sail Rigs
First Need Purifier
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