Since 2004 Solid Works has proved to be a much more reliable and efficient program. The current version is SW2014- SW2017. Since most of the equipment has been built by shops that use MasterCam, the drawing packages have effectively become 90% paperless. AutoCad is used for developing schematic drawings.
In 2002 the primary CAD package was switched over to Autodesk Inventor, (a 3D Parametric Modeler). The package was used for over 2 years and the current licensed version is V10