In a few weeks ago I will start my testosterone Prop and Tren A cycle and I found spotinjection online websites that explain how to inject. I have never used pins before, following the instructions on the websites I have found that have pictures and all. Everything looks pretty straight forward, I just want to know often I can pin each muscle if I'm doing say 100mg test prop and 75mg tren ace int he same pin. What is a good rotation schedule just how often can I hit each muscle. So far I can only think of doing deltoids and hamstrings. Maybe I can try the glutes if I stretch out my body for a while, but I'm not sure about injecting myself in that awkward position my first time out. All suggestions are appreciated guys ty!