Parkers use Trilux which is not a eroding antifoul....it is a hard antifoul...
It won't peel off either...
I had this problem with mine..
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That was 11 months in a tidal river.
You could add another coat a week or so before you launch !!!
I guess you would be best to put it in and after a couple of months pull it out for a scrub....
My signature.
Parker 235/ 40 Lady Penelope...
Paul Burton.
Wayfarer no.9362