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I don't mind making them bigger and will probably hit all with a countersink bit. the interior is blue, not white. If it was white it would blend better.

as for sanding the non-skid, unless I did it completely I would have to match the pattern. I plan to test mold making before I make the final decision on the interior. The other option is removing as much glue as possible, repairing the tears and holes and punting on whatever is left.