Has anyone experienced mast pumping while at the dock? Our '83 Mango single spreader rig has been experiencing mast pumping while at the dock causing the entire boat to vibrate and rattle in the mast. The rigger suggested that we first try to install a staysail wire from just below the foredeck light at the spreaders to a pad eye just forward of the windless.
Hope that someone has some information on this issue prior to us taking action on the riggers suggestion.
