For what's it's worth, you can objectively measure inharmonicity using a strobe tuner. Inharmonicity appears as relative movement of the octave bands in the display (ie, the bands are moving relative to each other).
BTW: There are some LCD display "strobe" tuners which I suspect are not true strobe tuners because the bands never move relative to each other. If it has a mechanical rotating wheel, then it's a real strobe tuner. To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
