I’ve been working on an update of my script. It makes tracking arcs and spacing easy. Here is a video that explains how it works.
Put it in your scripts folder (C:\Users\YourName\Documents\maya\201*-x**\scripts depending on your version of Maya), start Maya and run timTrackingTool(); in the script editor.
Software: Maya (2012 or later)
File type: MEL
Hope you like it! Feel free to comment if you want.