I am considering making a few repairs to minor gouges in my hull this winter. These are all cosmetic (with no exposed fiberglass) that are mostly below the waterline. Some actually look like chips from where the tow vehicle might have thrown up rocks in a gravel parking lot at a boat ramp. That said, my question is for this type of minor repair, is there any discernible difference from using gelcoat paste verses 3M marine filler verses something like Mari-tex?