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So I got a quote for $450 for a guy to come out and blast the hull with crushed glass. He says he has done it on hulls before but can not generate any references or images. Do you guys think the crushed glass is too aggressive?

On another note, finally flipped the boat over so the work is ready to start. If the blasting is not an option, I may just go ahead and sand the existing antifoul smooth, repair any defects, add barrier coating over the repairs, and give it a fresh coat of antifoul.

Before all that, I'd still like to see what the options are with the glass blasting from anyone that knows more than I.