Hi Burr,

So far I left the two lines of the build options, in the event I decided to have the script perform some other curves.
Exponential horn is a possibility, but there is only ONE flare value for a given set of r0, r1, and length, so a flare slider makes no sense.
Maybe some semi-fancy coding could make flare parameter and flare slider not show up for exponential...

So that is one reason why the name Alpha was used.
Some minor code modification and deleting the Build options would eliminate the leftover build options.

-Brian