Hey, this is my second cycle and I will be injection Test Enanthate. My friend who would do my injections last time will be away for a few weeks so I plan on injection myself. In the past I have only injected in the glutes but since im doing it myself I am going to use the deltoid, I wanted to ask what gauge I should be using 22 or 23? and how long the diameter of the needle should be. Thanks in advance.