Set one sounds like either fiberglass racing rudders (gelcoated) or EPOs (epoxy). Either of these are of foam sandwich construction and far superior to the others. Set two sounds like standard plastic (sometimes referred to as lexan). Set three could be ABS...Hobie made ABS rudders for a while.
Well, the first set is attached to the later model adjustable tiller arms with the sliding set screw so I guess that's the ones I'll use. What is ABS?
