It looks to me that some of you might as well use SAND ANCHORS as jigheads down the Pin, and it is no wonder the success rate is low.
If that works for you, well done and keep going at it. I known what I use (light Jigheads) catches fish regularly and in the sand banks I target there is no shortage of fish.
In fact I catch all my fish at the first sand bank I find on leaving the boat ramp sometimes less than 1 km from the ramp.
Each to their own and best of luck guys