I'm using weak ass 25mg / ml Deca (I'm deployed and is all I could get), so I'm doing 8 shots a week, 6 - 50mg/2ml shots of deca, and 2 - 250mg/1ml shots of Test a week. I have been shooting only the shoulders, alternating between left and right as much as possible. Is this okay, can I just keep shooting my shoulders? Or should I start using other body parts? Sometimes when me and my buddy shoot each other it sort of hurts, sometimes it we can't even feel it, sometimes it bleeds, and sometimes it doesn't, is this normal? Sometimes our shoulders are sore for a day or two, normal?