I think it's just personal preference. I'm currently on Tren Ace, Test Prop, S4, GW and adding Winstrol when I drop the Tren. I pin e/d and the only sides I'm having is sweats and insomnia, both are getting better. I think next run will be with Tren E and Test E, just to see how I respond. I've always had great results with Prop.
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