I think that if you make it your business to become informed about
how uPSA can most beneficially be used, and how it can also be abused, you can easily make that call. For men with good pathology, like yourself, the data suggest that the only time that men in your situation should react to uPSA findings is in a very specific situation: a uPSA over 0.03 and
rising on two subsequent uPSA tests or a rise of 0.05. In situations where uPSA is below 0.03, or where it is above 0.03 but it is stable, there is no cause for concern. Of course, a super-ultrasensitive test (3 decimal points) is completely unnecessary and should be avoided.
The danger is if you look at, say, a single reading > 0.03 and think you need treatment and develop anxiety over it. Conversely, one can develop anxiety over not knowing exactly what the uPSA really is. So, I think, it depends on you, and you are fully capable of deciding for yourself.
You had adverse pathology (T3a) and should be using a uPSA. It is definitely not in your best interest to wait for PSA to exceed 0.1. This was most recently demonstrated in the following:/pcnrv.blogspot.com/2018/01/new-study-adjuvant-radiation-saves.html