The 2nd and 3rd  generation rudders are too long to trailer in place on the water ballast model.   I've trailered many 2,600 mile round trips by inverting it on the gudgeons.  I did drill the second pintle for a cotter pin and have both pinned.  Secure with bungee to keep the rudder from swinging.

A reminder:  The heat attracted by a darker paint will cause rudders to swell and stress.  They should only be stored in the sun if they have no dark bottom paint or are covered with a blanket made from reflective duct insulation or windshield dash protectors.