@Brian,

re:
> I wonder if Michael could add a slider, to do a partial percent rigid flow, and partial regular flow?
> Somehow multiply the curvature and torsion by a percentage, in the "mapping" algorithm?

The "rigid" option for flow transforms just a single centroid point and then moves and rotates the object without deforming it, while the regular deformation method deforms all space.

These are different enough that I don't see how it could work to do a slider with a partial result between them, sorry.

- Michael