Check to see if your club qualifies for the 50% Boat/US dues discount; most do.
BTW, have had Boat/US for over 20 years; while no claims filed, my brother did and had a check the 2nd day after the event with no quibbles.
i just got a price from my carrier(travelers) 713.00, boat us with just about the same coverage except the value of the boat, 273.00 i did this at 615,4 mins later boat us gave me a price,it pays to shop around