Here's another two cents worth....
A lot of Docs consider <.1 as undetectable because the older PSA tests (and some still use them) only go that low. THe newer tests go lower.
I had IMRT, and the line in the sand I drew was .2 on post-RP PSA (it hit .24)....I didn't wait around for another rise at that point. THe best I've read was that you want to get the treatment as long as you are south of .5.
My doc seemed to think the bouncing around under .1 was was just testing noise. With a YOUR moderate Gleason, and good pathology---this could well be thye case.
I got on well with HT and RT combined, but I DO have lingering side effects --- some stress incontinence and some rectal problems. I already had ED, so I can't tell you anthing there, except that radiation sure won't HELP you in that area.
You might want to set up a consultation with a good radiologist/oncologist and get their take on at what point they would want to treat you ---can't hurt! GOOD LUCK.......
Open Radical Prostatectomy 6/9/2006
Pathological Stage T3a, Positive Surgical Margin
PSA rose to .24 in November of 2006
6 month hormone therapy initiated December 1. 2006
36 sessions of IMRT Ended Feb 1, 2007
PSA as of May 25, 2007 undetectable
Next PSA November, 2007