I lost a decal, cleaned the residue with denatured alcohol and tried puting the new decal back on. Appearently I didnt get all of the residue off becuase the new one started to peel off with in a week. I peeled it back and noticed that there was still some residue left on the hull. I have scrubbed and srubbed with denatured alcohol, goo gone and I have even taken a plastic scraper and I still cant get that old stuff off.Are there other chemicals I should try? Are there any that will damage the gel? Im assuming paint stripper shouldnt be used but what about mineral spirits or acetone? Are those safe? Any other suggestions? Sandpaper? Rubbing compound? Jackhammer?Thanks,Kent