Hello all - Im in a bit of a pickle. Background: i know my way around working on instruments, novicely. On my Eastman mandolin - tune to pitch, check harmonic nd 12th fret...they are the same, so that tells me the bridge is proper in place. BUT when I fret, for example, 5th or 7th fret (bot exclusively) they go sharp? Is this a fret problem? Or is the neck bowed r something? Thanks in advance.