I just did some stripes on a boat using Oracal 3551 which is supposed to have "clean removability up to 4 years". Less than 24 hours later, I decided to redo one of the stripes and it took me a half hour to get the left over adhesive off ( I didn't even set it with heat or go over it with pressure when applied). Had to use goo gone, a heat gun, a plastic scraper, prepsol and lots of elbow grease before it came off. Now I have to letter up 2 classic cars that the vinyl will only be on for the summer season. I am very leary after what happened with the boat and I do not want to be responsible for these cars. Does anyone know what the lowest tack printable vinyl is? These cars have less than 10K miles on them... they won't be driven on the highway or in the rain, etc., so I'm not worried about durability, only that it will come off clean in 6 or 8 months. My material reps are only going by what the manufacturers description says. Which I've proved cannot be trusted. Any help is appreciated. Thanks!