When it comes to nose-bridges on the X-Metal family. How loose is too loose? At what point do you feel like they need to be tuned up. Just curious because before joining and acquiring many frames here, the only experience with X-Metals that I had was with the one's I purchased new. That being said, they were all factory tight. The only one that I purchased brand new was an OCP Juliet polished frame, that was about the same as some that I've received here. In picking up some metals here on the forum, I've found different degrees of looseness that are not really loose like falling apart or anything, but looser than I'm used to, so I'm posing the question at what point do they need to be tuned up? Is there a standard you use to determine this or is it soley on personal preference?