OK, I've had this on-going debate myself. To do the Ultra-sensitive test or not.
My regular physician's lab does the ultra-sensitive. I've had it done several times. My surgeon, Dr. Catalona in Chicago, does the standard and was one of the PSA pioneers. He says the ultra-sensitive test is too "noisy" to be reliable. Yet there are studies that show that ulta-sensitive tests can detect recurrence sooner and therefore increase the effectiveness of early intervention of radiation. Yet no one recommends radiation until your PSA is over .1 anyway, so not sure I get that.
All the PSA pioneers seem to be in synch that the standard test is still the one to follow...Partin, Walsh, Catalona. I say, if the ultra-sensitive test causes too much stress, stick with the standard test.