Thank you all for your thoughts and comments. Yes, I have watched the introductory tutorial and was aware of the plugin's feature and ability to use the 'Mask Core' alpha mode under the render settings. This is certainly a great feature - but not exactly what I'm after. I am looking for a way to completely disable the core visibility to do exactly what was Pilcha suggested. Use the plugin to create advanced smoke and atmosphere effects, with all the ease and features of controls that saber already provides.