Md Anderson had a trial that said intermittent was not inferior to continuous. I am preparing to self experiment with it. I was warned to have a petscan before my off time. It seems that 12-15 percent of us can have me etastasis with undectable psa. It might go poorly if that were the case. My plan would be to stay off adt til psa rise then scan to see if there were spot(s)that could be zapped.