Was the 3+4 Gleason from your pathology or only from the biopsy? If the latter, look at your pathology report if it changed. It should also say if a minor pattern 5 was detected. In my understanding it is not such a big deal, what matters most for recurrence risk are negative margins, no cribriform, no IDC. If you have not done a decipher test yet, get one done on the specimen to have an idea of your metastatic risk.