I was going to post a response but @manutebol said exactly what I was going to say. My PSA reached .297 3 1/2 years after RP and I had a PSMA-PET scan in January 2022 which detected some cancer where my seminal vesicle had been. That led to Salvage Radiation along with 6 months of ADT. My PSA post SRT has remained at < .008 for 2 1/2 years.