Why I'm asking this? well, lately I've been trying to lower the action of my Hagstrom HB-4 bass. It has a 15" fretboard radius, I'm using a gauge to measure the radius from the top of the strings. In order to follow the fretboard curvature, as I understand it, the E and G strings should be a bit lower than A and D. First, I try to get the E string as lower as I can with an almost straight neck. Then I try adjusting the other strings following the curvature. But the end result is that the E string feels to me much lower than the other strings in comparison. Due to the other strings not being as thick as E, I have to raise them more, it feels like the less thick they are, the more I should raise them, so the G string ends up too high to my taste but looking ok from a radius point of view. To me it feels more comfortable to arrange the heights of the strings in a flat, non curved way. Am I doing something wrong?