(I am presently halfway through The Rise of Endymion, it may of course be explained in what I have not read yet)
In "Hyperion", we read the story of Father Duré who after leaving the Bikura crucifies himself on a Tesla tree and afterwards "but it still looked like Paul Duré" ... "seven years. Living. Dying ... the cruciform ... forcing him to live again"
Did he get a cruciform v 2.0 that made it possible to be resurrected without the personality and intelligence going away as had happened to the Bikura, or is something else going on there since he obiously did not end up that way?