At my shop we use a rubber eraser wheel. You have to use it with a high speed drill or similar. Any automotive paint jobber can fix you up with this. Works very well.
I have never had the pleasure of using one of those eraser wheels but wish I had invested in one, I have always used a heat gun applying the heat sparingly until I got use to it, it leaves you with a sticky mess that you use 3m spray adhesive remover on, messy messy messy but got the job done
Yeah, we use them almost daily. All the body side moldings on cars are put on with double sided tape. The eraser takes the tape right off. Just don't ever try to use it on a plastic bumper cover...or you'll be repainting it!
I will ask the same question I asked you in the emails between us: Are these ORIGINAL stripes or new stripes? You will also have to use a new stripe, you won't be able to reuse the old one more than likely.