@clevelandguy

I think that "some people are saying" is not relevant until it is scientifically proven to be a better approach. For now it is not, not even close.

For the time being multiple studies showed benefit of doing RT in pelvic region upon PSA rise even if PSMA does not show anything since there is 35 % chance that cancer is there and in the other 35% of cases it is at least partially there. For that 35% where it is definitely there RT could possible be CURATIVE , not just "controlling" it .

If scientist found a medication that works in 35% of cases as a cure - they would be ecstatic and that institution would get a major recognition for that discovery.

So, bottom line, sRT is done in hope of the cure and there is about 35% of chance of that happening if cancer is caught in time. If one waits till something shows up cancer could possibly send multiple mets all over the body in that "waiting period".