Re: MarineTex or Gelcoat for this?
What type of Cosmetic Results are you looking for? If you want it to be almost un-noticeable you should prolly try to Mess with Gel Coat. If you just want it to blend in a bit you could use Marine Tex, or mix up your own Thickened Poly and some CSM to patch over it and then blend some paint. Lot's of ways to fix it, It all depends on how picky you are with the final outcome.