I'm no expert but the surface doesn't look that on my '86 EPO's unless those rudders were refinished. The surface finish on mine is flat black but very smooth. It is hard to tell from the pics, but the finish looks a little bumpy, especially in your first pic. EPO's are Epoxy and fiberglass cloth matrix. I believe they were all painted with a black UV barrier. On mine, the fiberglass fabric weave shows through (looks silver-white) anywhere they have been scraped or rubbed- see the area to the right of the sticker and the area scraped by the lower rudder casting in the second pic. I can't see any fiberglass weave exposed where the chips have broken off the tips of those rudders either.
Is there any residue where the rectangular EPO stickers might have been?
EPO's are very hard and rigid. If you rap your knuckles on EPO's they produce a higher pitch sound that the plastic rudders.
