I think the official standard for BCR is nadir + 2.0 for the PSA. I believe the 3 consecutive rises is no longer used in radiation patients.
My numbers are almost identical to yours. It is very discouraging. In fact, I am over a month late in getting my next PSA. I could not bare another disappointment. My brachytherapist who is considered one of the best, believes I am still ok. He told me that in his experience, 15% of brachy patients nadir in 4 years.
He told me that they hover around 2 for several years than fall below .5 in 3-5 years. I hope he is correct. I tend to be cynical however. I do trust him and he is extremely knowledgeable. I think you made the correct decision to wait 6 months.
Hopefully, both of us will fall soon and be able to help other men that follow our pattern rather than the typical precipitous fall within 1 year.
Jim is correct. My doc told me that he has a small percentage of men that nadired around 2 and has been there for over a decade.
Paul