Flounder,
A little history lesson.

The Comp-tip and non-conductive hiking sticks are the result of a consent
agreement reached when Hobie was sued by the family of a person who was
electrocuted by hitting a power line with his mast.
If Hobie Corp agreed to make the top portion of the mast out of a
non-conductive material, they cannot change to a mere non-conductive coating.
The Hobie 17, 18, & 20 have internal, non-conductive halyards.
The 16 halyard is half stainless and the stainless half is behind the
mast until the sail is raised. Most power lines are hit from the front.
I saw a guy stepping his mast and hit a power line.
When he realized what he had done, he said he understood about comp-tips.

I have seen plenty of all-aluminum masts leak and fill with water.

The so-called "performance advantages" of the Comp-tip are only advertising spin.

What is wrong with mast rotators?