Shadow only plane isn't working. Keeps sending me the ground as being pitch black, and I have compared it to a working file I have tried copying the settings from (http://rgbmix.blogspot.com/2014/08/shadow-only-material-in-cycles.html) To no evail. Here is my .blend (http://1drv.ms/1GO6f2F)
Any questions on this solution I came up with, just ask. Sorry for the late reply. Hope this helps the rest of you! You can use an HDRI with this BTW!