Mooring advice needed
When I moored my 36'' wooden ketch in Maine I used a 1 ton granite block, 1 X water depth of bottom chain (used Coast Guard mooring chain) and 2 X water depth of top chain(3/4 galvanized), all this went to a ball with 20'' of 3/4" nylon line (which was 1 x water depth) for a total of 4 to 1 scope. It held in 70 knots. All together it seemed like over kill but it always held no matter what the weather. The harbor was directly on the Atlantic coast.