I haven't watched the vid yet, but I can give my own experience. 30 plus years ago, when I was in my 20's, I kept a good percentage of my gains AND that was without PCT. Nobody or very few even knew what the hell that was. I continued to lift after my cycle's and always kept a good portion of strength and size. I'm sure with a proper PCT back then I'd have kept even more.
What I couldn't understand were these guys who would cycle, put on 25lbs, get big and strong and then I wouldn't see them for 3 months. They would literally stop lifting when they stopped cycling and lose everything they gained. Then repeat the process over and over. Ridiculous.
