I need to remove then replace the decorative Hunter blue vinyl tape stripes that are on the cabin port and starboard sides. They have been on the boat for 20 years and I have purchased new vinyl to replace them. They are cracked and will not peel off with a simple scraping with my fingernail. I have not used a putty knife, chemicals or heat.... yet. Does anyone have a good method to do this before I do a "hatchet" job and wreck the gelcoat? Thanks, Jim