Giovanni you may want to contact Z directly as they have recently upped their quality control and are doing many more things in the US as opposed to China. The reels that go out now are pressure tested and they have changed the seal materials to improve their water resistance. I believe they have also changed the type of lube they are using as the original z lube had properties that allowed salt water to infuse with it. They have taken steps to ensure the latest revisions of this reel are better than maybe even the first generations. To use your analogy they have taken a dino and made it an enzo