i just realize now that you leave the film on the rubber when you boost. it's not good because the topsheet can't get in tension during the process. it's been proven that it lasts shorter when you leave the protective film. it also puts the pimple bonding under huge stress because you don't allow the topsheet to move while getting in tension. believe me mate, take it off before boosting and you'll have an even better effect that lasts longer.
