I've got an old bottle of Menzerna Final Polish II. It's about 3-4 years old and has always been stored in the house. Is it still safe/good to use? Also what is the equivalent of Final Polish II in the current line up? And the last question... what polish in the current Menzerna line up would have more just a bit more cutting power than Final Polish II. I'm only looking to remove some very minor swirls. Thanks!!!