Quick refresher: (now) 52 y, AA, diagnosed with PC 2018 Gleason 3+4, 10 of 13 cores positive. Did whole gland HIFU in July 2018.. PSA originally dropped to 1.5 but soon creeped up to 3 and MRI confirmed still cancer mostly on one side. Got Cyberknife June 2019. Just got PSA results in ...2.5. Not as low as i hoped. How long does it take to hit a PSA nadir post cyberknife? Doc visit coming up in couple days....