I have noticed (for a long while) that I am getting a clicking sound on my E-string. It is not an electronic sound, nor is it the string(s) hitting the pickup but rather something that sounds like it is coming from the neck. It can be heard amplified, but in a full band mix it is barely noticeable if at all. If I play really lightly, it goes away. If I dig in a little bit, it's there. I wouldn't say that I dig in too hard and I feel it is something that should be able to be removed as part of the setup, however I do not know what adjustment is required. I know that I tend to pluck more at a downward angle on the lower strings, but not a ton more. It's also been consistent for multiple strings (i.e. I have changed the strings). It is also only on the E-string and not the neighbouring A and B-strings. (EDIT: It can also be on the A and B-strings, just to a lesser degree). Is it possible that it has something to do with the nut? Is it slotted too low? Any help would be much appreciated!