Hi Harry,
The likelihood of a biochemical recurrence for your GS3+3 cancer with good pathology is very small. Fill this out to see how small - it also tells you the likelihood of NOT dying of PC in the next 15 years:
/www.mskcc.org/nomograms/prostate/post-opAs you can see, there is negligible likelihood of your dying of prostate cancer in the next 15 or even 20 years. So the question is yours to answer: Would it give you greater peace of mind to get annual PSAs, or to put it out of your mind entirely (if you can)?