@rkurtzjr SBRT in my case was a 'boost' therapy at UCSF involving treatment sessions 950 cGy x 2 only. I'm not sure if they updated the mapping, but, doubt that given the small number of fractions. Cyberknife treatments preceded VMAT EBRT 180 cGy x 25 at Stanford. I chose Cyberknife over HDR brachytherapy done by Dr. Roach, who published a report comparing efficacy, since it was far less invasive, among other reasons.