Seems like mainly gravel and hard pan sand. It is hard to get an anchor
to grab. Any idea how much steal loses in weight when imersed. I''m thinking if I have enough Weight and scope it should be ok. I wish there was some general rule of thum I could use based on displacement. When I had someonwe dive on my old mooring it hadnt settled in any after three years. I had the primary weight 1200lb with 20'' of chain and another 200lb then from this I had another 20'' of chain going up to the Ball. I never had any problem, and I feel I had the right set-up but still am unsure how much more weight is needed. The old boat displaced about 1800lb compared to 11500lb with the new.
Good advice so far any additional would be helpful