I'm currently running a cycle of sustanon/deca. The first 4 weeks I inject directly in glutes. I gained about 6 pounds and could see muscle trying to develop. LOL. Then last week I injected directly into arm. I could see a big difference without 2 days of injection. For instance the arm I injected it seems to have develop a pretty good chuck of muscle right outside the elbow that isn't there on the other arm. Is this real muscle? It certainly look like and feel like it. I'm assuming if I inject directly into arms the arms will get the best results, if I inject directly into thighs they will get the best results? Is that how it normally work for you guys?