I have a tip for fishing with diamond jigs. Don't know if it was mentioned in here before.
When there is a lateral sweep to the current, some times I catch fish by tossing it out and working it laterally with the way the sweep is going.
That works when the fish are sitting over the bar. You can also toss it out past the bar, and with the sandeels they will often hit it right before you come to the bar.If that doesn't work I try against the current. You never know where they will be from one day to the next so try different things.