If the bass feels "right" under your fingers but your eyes say that one side is flatter than the other on your neck, clamp a capo on your 1st fret, hold down your low B at the 24th fret at the end of your neck and run a feeler guage under the string at the eight fret to determine the relief (gap) between the top of the fret and bottom of your B string. Repeat this on the high G. If the gap is the same on both strings trust your fingers and not your eyes. It is hard to sight a gap under and .045 G string and compare the gap under a .120 low B string. I've been fooled before. The feeler guage will tell the tale.