Hello CNCZone.
Recently purchasing a G0602, I decided to write a small windows application to assist in selecting the threading gears and gear box selection. It's nothing monumental and I did it as much for the fun of writing it as I did for its practical use.
Download, unzip, and install the MSI file. It'll drop an icon on your desktop and a shortcut to the Programs menu under a folder titled RWeyUtils.
G0602ThreadGuideInstaller.zip
Hope you can find a use for it.