Hey everyone, So my bass (Warwick Corvette Std 5er)'s intonation is a bit out of whack. I followed the instructions on the bass setup site, and I adjusted the bridge so that the open string and 12th fret are in tune in all strings. Now, the problem is that when we get up to about the 15th-16th fret we start getting quite noticeably out of tune, and it gets worse as we go up, all the way to the 24th fret, which is borderline wrong note. Does this mean my neck is pretty warped? Is my relief wrong? I've checked my relief with the instructions on the website as well, and the relief is just about perfect. Should I adjust to the intonation so that a different upper register fret is in tune?