I have hellvape me rta and I had some flooding problems and I checked the top fill seal I love the topfill and check it with my mouth and I see that it's not sealing perfectly.... The rubber seal seems to not make perfect contact and I wonder could this cause flooding problems when I leave my vape without using it??? It draw air into the juice chamber??? Also someone here on a thread mention he had 2 hellvapes and when he swap the topfill parts with each other his vape don't leak....should we have perfect seal at the top fill mechanism???