Hi Max

Michael provided the code/information on moi.ui.fireUIEvent and onmousemove, for the Clothoid2ptSliders script.
I will try to use your improvements for the Clothoid sliders.

Thank you for the diff tool information.

Checking out your code shows 3 improvement areas.
1. Corrected divide by zero potential error.
2. Greatly reduced slider flickering.
3. Clicking on one of the 4 spiral families switches the spiral to that type.

I am posting a zip of your two files to post #1, replacing the older script.
I need to improve my haphazard version control.

Also, Thank you for your impressive improvements. I had no idea how to do them.

- Brian