First Time injections.
This would be my own personal suggestion.
23G 1" Quad injection.
Don't push it in slowly or quickly.. Don't think about it.. When you are ready to inject and the area has been prepped.. Just line up and in a constant move just insert the whole 1".
The reason I suggest the Quad is #1.
You can see what you are going.
#2 If this is your first injection and you choose a glute inj. Then have fun.. After a few times in the glute it becomes effortless. But... When it is your first time and you choose the Glute.. you may get nervous.... Your back will for sure tighten up and Cramp. you may move around too much...
So.. Choose the Quad inj. Be sure not to move the pin at all when it is at it's desired depth, Asperate and inject.
It's really not a hard thing to do... The first time take your time.. and then do it.
Kro!