Pgitug
Guru
Anchored in my favorite spot at Hilton Head for jumping off going outside to St Simons inlet. Bottom is hard mud and shell. With our new to me boat, I tried just the Rocna anchor with 6:1 scope of chain. But with 900 rpm I was slowly plowing the bottom. So after retrieving the Rocna, I teathered on to it, under the roll bar, eight feet of 3/4" line spliced to a Fortress FX-23. Dropped the Fortress over and while slowly backing down dropped the Rocna and 75' of chain over. Set the two tandem anchors with 1000 rpm and then went to bed and slept like a baby.
we anchor just SE of the #4.