Why Stanchion Wires Are Not Lashing Points
Plastic-coated or bare 1x19 stainless lifeline wires are engineered to arrest a crew member falling inboard/outboard, not to bear the continuous cyclic wind-load of a 3.5-meter airfoil pounding into head seas. Lashing a board high on the top lifeline exerts massive leverage on the 8 mm bolts securing the stanchion bases to the toe-rail, leading to gelcoat crazing and deck-core water ingress.
Instead, pass flat polyester webbing straps directly around the forged base of the stanchions, through dedicated aluminum toe-rail slots, or onto clamp-on 25 mm stainless rail cradles mounted on the rigid aft pushpit tubing.