Kdeinv,
You are doing everything right up to this point by gathering all the information that you can--you have 3 threads going (lol), but that's good. DON'T make any decision until you are completely comfortable with it!! I was impres??sed by one of our forum members (Chatuge) sharing with you his experiences with your selected robotic surgeon. He went above and beyond!
Based on the opinions of John T and PeterDA(another thread) regarding the higher risk of surgery in your case for incontinence and ED, I hope that you seek the advise of a Radiation Oncologist. The nodule that was discovered during a Dre is worry some in my opinion. I wish you all the best. You have time to make a decision that is right for you.
Bill