Has anyone swapped a rudder (same model) on a mid 70's E boat? I am modifying a same year rudder from an E27 for Lotus Flower and plan on installing it sometime in the next couple of months. Ideally I would have hauled the boat, dropped the rudder, installed the "new" rudder, checked for fit, removed the rudder, reinstalled the old rudder and splashed. But I didn't. I'm curious how consistent the fit was boat to boat in that time period.