Maybe that's the solution, designate Lake Winnipesaukee the go fast lake and ban the granola munching, kayak paddling blue plague to Lake Winnepocket. Set a minimum HP limit for Lake Winnipesaukee, say 300 hp or you can't play. Same exclusionary practice, just a different target. What's good for goose, should be good for the gander.
This would solve the proponents alleged "safety issues", would really reduce the "wake problem" as fast boats produce small wakes. It would also get rid of the "crowding problem" as most boats are less than 300 hp. It's the perfect logical solution to the SL proponents issues.