If you find that you cannot hold the bottom with your grip lead because the legs are breaking out due to the strong tide pull,  then a simple tip is to use an elastic band.

Tie on an Elastic Band – Tie a strong elastic band to one of the wires of your lead

Wrap around Sinker to Add Tension – Wrap the elastic band around the sinker, covering the wires beneath the beads. You can adjust the tension by adding or
reducing the number of wraps of the elastic band.

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