Could certainly cut the ADT by 2/3s. Only SBRT would lower the radiation Biological Equivalent Dose by 50%. With a 3 Gy fraction the BED would decrease by more than 1/3. However, the severe proctitis is probably due to poorly delivered and maybe poorly planned (high dose to rectum) treatments vs. the difference in total BED between the fractionations. Does not invalidate the point that if you are getting your body shot full of radiation make sure to the best of your ability that the equipment is state of the art and team delivering it is skilled. I also had a RO state he would cure my cancer. That was enough for me to look elsewhere.