Question guys, what is the best way you have found to seal up screw holes. Picking up a boat this weekend, has mounting holes from previous trolling motor and electronics. I can more than likely access holes from below if needed, I think. Would you use 3M 5200 or Marine Tex to seal the holes left. Also the gelcoat is red metalflake on the top. Any way to make the holes less noticeable after you seal them. I read some use nail polish to match the color and clear nail polish over this. I have used the latter on scratches.