[crnbaker]

Dev here! No, this version is an ideal string - no stiffness. Just meant to provide a fun and different way to think about sound design, rather than realistic string sounds (so the physical modelling branding is a bit of a misnomer). But it sounds pretty good I think! You can get some inharmonicity via numerical dispersion by reducing the accuracy (but in the wrong direction). I have a few other devices in the pipeline, at least one of which should include stiffness.