I had treatment (EBRT) in 2004-5.
Last year i had a BCR (recurrence).
The biopsy reports which were confirmed by John Hopkins (Dr. Epstein) stated that i have intraductal carcinoma with a gleason of 7.
The conclusions that i have read are that it is more aggressive as you say!
My only treatment so far is having 6 months of ADT (firmagon).
This is different then your situation since intraductal was not (for me) diagnosed initially.
I suppose there are a number of different options. In my case, i don’t want further radiation. I am not sure what i would be thinking in your shoes. Someone said that i could remove the prostate. However, after radiation removal could cause a lot of complications. However, it might be good to do in your case…