Thanks for the clarifications on my post. Your're absolutely right on several key points.
Impotence is the biggest concern for post-radiation side effects. Unfortunately, due to the nature of my particular prognosis, my original prostatectomy was non-nerve-sparing, so I was already dealing with that. Incontinence can also sneak up on radiation patients over time, -- so far so good on that.
Looks like you're going to do proton as a PRIMARY therapy, as opposed to salvage therapy like I had. I researched proton and talked to two different ceters, and I believe I would opt for proton as an initial thereapy --- I was very impressed with the reports of fewer did effects, especially relating to potency. I live about 3 hours from Bloomington Indiana where they do proton thereapy. In my case, I really did not see as big of advantage because in salvage thereapy they tend to radiate around the prostate bed where they "think" the residual disease might be, as opposed to zapping a specific tumor. The marginal benefit didn't overcome the additional hassle in my case. I think you're on the right track --- GOOD LUCK!
Open Radical Prostatectomy 6/9/2006
Pathological Stage T3a, Positive Surgical Margin
Post surgury PSA has fluctuated between .04 and .09