I think in most circumstances I’m more comfortable knowing what my PSA is doing than not knowing - even if having that information wouldn’t affect treatment decisions at that time.
Truth be told, mattam, I'm that way too. My RO says I don't need a retest till September (6 months since my March <.02), but my PCP reflexively checked the box for uPSA on my lab order for June (CBC, lipid panel) and I don't plan to tell the lab to skip it.
Age 60 at dx 7/2017 biopsy G8 (4+4), 5/13 cores
RARP 8/2017 (Patel), pT3a N0 M0, 30% tumor; EPE+, SV-
PSA 1/2016, 2.9; 4/2017, 7.2; 9/2017 (post-RARP), 0.13; 10/2017, <0.05, 1/9/2018, 0.09, 2/23/2018, 0.08.
SRT 72Gy, 40 fractions, finished 5/8/2018, plus 12 months ADT, finished 2/2019, PSA <0.02, T=4
Caution: I’m not an MD and don’t know what I’m talking about