Here is alpha version 19.
The sliders work. Delay is roughly 1/4 to 1/3 second for one modification.
Reduced decimals of parameters to 1 or 2, from 3.
Reduced numpoints to 40, from 50.
Inner flat is working, but is on wrong side. (An easy fix, as per arcloop script.)
The log spiral preset looks a little strange. Has a variable thickness, not a curve.

- Brian

Well done and respect for this nice little addon the the huge toolbox of MOI !!

Thank you SirTom.

When I get some time, I may try some speedups on forming the profiles.

Last night I read about how whiskers follow euler spiral curves :-) (No script planned for whiskers.)
The math guys should have tested log spirals?

- Brian