The end of the wrap or even the "terminator" from the foil at the base on the strip close to the outer jacket is often tough to see and to locate. If you'll find this "terminator," you could nick it with a little Slice with a knife and peel it https://media.wakelet.com/docs/r0CRNcbo0pKmblGKOpRAV?sig=2da888a844c4aba0b1485b7c9fb4ae769ac77261552d26e597f409856a7b305b