I am in the school of thought that Tren is OK in the right hands with good diet , ancillaries and PCT. If running prami or caber with it, some n2guard etc etc. Additionally, throwing GW from our boys at sarms1 at the tren cycle mid-cycle through PCT may negate the endurance sides, some bros are having success with this right now. Prami at night keeps the trensomnia away for me.... I feel as though many tren-negatives "trenegatives" (feel free to use that one boys) are because of bros getting 2 hours of sleep per night.
I am really looking forward to trying primo some day though. Shit, if Arnie calls it good, I'm on board.