I know there is a topic about spotting fakes, and it comes up all the time. But even among posters usually you see " thats fake!" then another "ledgit" I can understand with the plastic framed glasses how easy it must be to fake them. take a casting of a real pair and pour away. But with the Xmetal stuff how good are the fakes? I have wondered for years if mine were real or not. Is this something you can tell right away ie. made of plastic, or the nose bridge is solid. Or are there really good clones out there? Looking on the used market it makes me worry that 90% of them are fake and I worry i will miss a ledgit good deal.