So I attempted leveling and crowning the frets on a couple of very cheap guitars I have. Both of them had multiple (3-5) places on the neck with dead notes. Now the dead notes are gone, but both guitars have a fair amount of buzz on many of the frets. I’m thinking I did a terrible job crowning the frets and May have many flat spots still. Here are my questions: Does this sound like it may be the issue? My vision isn’t great, and I’m having trouble seeing flat spots. The light plays tricks on my eyes and they look flat from one angle and fine from another. Does anyone have a trick for finding flat frets? I feel so stupid for even having to ask this, but I can’t figure out how to work around my poor eyesight.