Posted 12/16/2013 9:32 PM (GMT -6)
Based on the info supplied, and you may be missing some key dates, you should have experienced a substantial PSA drop after completing salvage radiation. When was the first post reading done? My RO waited 3 months, to allow the radiation to complete its work, before taking the reading.
You next reading should be a pretty good indicator of whether it worked or not. In my own SRT experience, I got a 75% reduction on the first reading, and that was it. From that point on, it rose every single time, and was considered a failure in less than 9 months. I went into it, however, only with a 20% probability of it working, so it wasn't much of a surprise to me that it failed.
Hope you do much better than I did.