bottom paint choice
We use Micron CSC, which works fine for us. The "extra" apparently contains a separate biocide from the CuO, and is not deemed necessary around here. (Long Island Sound) A good feature of the CSC is that you can haul out, even for long periods, and not lose the anti-fouling properties. This is not the case with all paints. (I don''t know about VC17 in this regard.) Do be sure to apply extra coats where the pads are, because the abrasion will thin the paint there. Also, if you do different colors in different years, you''ll be able to see exactly how long an ablative (CSC) lasts for you.