@stldadof4
I think waiting until you get your Decipher would be what I would do to discuss treatment options. This is what I did so just passing on my experience.

Your biopsies of 3+3=6 you stated are your most concern. These numbers are of the least concern. Pathologist don't even list any numbers below 3+3=6. Your 3+4=7 are something a lot of posters would have loved to have.

Please discuss your options after Decipher. It will give you the risk level of your PC and not the subjective Gleason Score. Regarding PET scan. I had the PSMA done as was recommended by UHFPT R/O. I had it and was negative.

I chose proton radiation after getting two different opinions from two different COEs.

You are young. I was 76 when diagnoses with PC. Thus you have a very long life expectancy. Discuss with your medical doctors the pros and cons of every treatment plan and decide what is best for you and your life. If in doubt at all seek a second opinion. Again I did this and just passing on what I did to help me make the right decision for me.