I've used a Scotty anchor pully/lock system for the past 7 years on my 14' aluminum boat. I'm very happy with it. Just run a rope back to were I sit at the tiller and I can raise and lower it from there. Very sturdy, I step on it, lift the boat with it and it works great.

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. . . and God said unto them, Be fruitful, and multiply, and have dominion over the fish of the sea . . .