e31,
With a scope of three to one and shallow water, you could use a Bruce
anchor and chain.
I never rely on a sentinal and the shorter the scope, the less the effect. With a scope of three to one, you''d have to have alot of weight on that sentinal for it to have any effect.
But again, if you really like this spot and want to go there and
anchor safely, you might just as well make-up a
rig you use just for that place(or any skinny water). Go with the Bruce and chain and watch everybody else drag.
Dennis
Dennis