Hi folks, I have just got a question about the headstock issue read in the title section, and couldn’t give him answer. I have 4 guitars that go for the question, they are all teles and all bending up more or less and it’s more obvious when they are strung with heavier gauge sets. 2 of them look pretty straight with naked eye but still not dead straight with a long aluminum scale, of course. So, I think it’s quite normal, but need your opinions to convince him. Thanks.