I got my mandolin set up nearly perfectly. I sanded the bridge bottom to perfectly contact the top plate, based on the intonation positioning that I figured out through testing, repositioning, testing, etc... String heights from above the first fret are 0.013" and 0.010" for the GD and AE strings, respectively. The string height at the 12th fret is around 0.060" but varies a thousandth or so between the smaller and larger strings. To compliment the 12" radius on my fretboard I applied a 12" radius to the nut and the bridge saddle. Note that the saddle is at its lowest setting on the adjustable bridge.
After I got it all tuned up I started plucking the individual frets. Everything was fine until around the 15th fret, where I started getting the dreaded string buzz, primarily on the G and the E strings. As I went to higher frets it continued, and the D and A strings started in as well. All of the earlier frets sounded fine. From examining with the naked eye it does appear the strings are making contact with additional frets nearer the bridge. (I did level the frets before all of this and also checked the neck to make sure there was no bowing, which there was not. The fretboard is completely flat/straight.)
To me, the logical solution is to slightly raise the saddle with the adjustment wheels on the bridge so that those frets nearer the bridge are not interfering. My only concern is that I believe the 0.060" string heights at the 12th fret are already bordering on too high? So lifting the saddle would further exacerbate that problem.
Am I worrying about nothing? Should I just go ahead and raise the saddle on the bridge?
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