I think he was talking about use as a competition Lifeguard paddle board. In that case, it needs to be lighter rather than heavier for a streamlined paddle and continually catching waves back into the Shore, after rounding a bouy in a race.
Absolutely cool!!
I went with regular epoxy hotcoat since it’s a performance oriented paddleboard, I prefer it a little heavier and it to last longer, here’s a couple photos of the hotcoat
And now sanding. With a board of this size not the more enjoyable part of the process, good luck.
Ah yes; sanding. I like lemat’s idea of using a “slurry” instead of a hotcoat for painted boards. Your traditional hot coat is fine. I would just say that for a painted board look it over carefully after sanding. You may want to use a little “Marine” putty and a plastic squeegee looking for pin holes and scratches. Use a “High Solids” primer if you can find one. The high solids primer will fill and level your sanded hot coat. After primer sand again. 180, 220 whatever grit is needed to give you a scratch less prime coat. Blow or vacuum the dust and then wipe it down with a tack cloth. You did a good job.