Jeff - I have had buddies stop and start ADT several times . It seems to make ADT more effective for MUCH longer (10-15 years + ) . Just my experience in observing them . I got Salvage radiation 3 years after my operation at PSA 0.14 but never had ADT for some reason. Drs indicated I did not need ADT and in my case it would not be recommended . Now my PSA is 0.061- 0.032 in that range . Dr think that I have some healthy cells in pelvic area pushing out very small micro amounts of PSA . Dr's are not worried at all and they say they see this often . Strange case I think . Thanks for your help on board ! James on Vancouver Island .