I have had a great primo supplier for the past few years, and I'm really a fan at my age. As I have gotten older (nearly 40), other great drugs like tren just don't work for me anymore. Although, I'm tempted to run a 6 week tren cycle with lots of head meds on hand. I've done several great primo cycles at 600-800mg per week, and I bounced back in no time. No depression, no sexual dysfunction. Gains were great.
But, nothing compares to running tren and mast together. Nothing. Running 100mg EOD of test prop, mast prop, and tren a for 8 weeks will turn you into a god if you have the mental fortitude.