Stiffy outlines how to refinish the Hybrid on their website. I took the advice of many on this forum, and others, and used a black appliance epoxy to refinish mine. After many coats and sanding it turned out nice with no exposed glass fibers, but it left marks on my skiffs gelcoat anytime the pole touched it. I then tried Krylon Fusion clear to try to protect it but, it didn't prevent the marks. What finally worked was heatshrinking it.
https://www.amazon.com/gp/product/B071XF7NZQ/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 It adds some weight, but not terrible. Girth is hardly noticeable and it feels stiffer than before. My recommendation would to be to follow the Stiffy instructions exactly with the expensive 2-part polyurethane paint, or just shrink-it and be done with it.