I pinned my glute a little lower than I've done before. When I twist my body around to pin my glute, you can see that muscle at the top that wraps around. Mine is very prominent and easy to see. Rather than pin right into that muscle, I went right below it. I was able to inject the "test" very easily. When I pulled out, I questioned if I hit a muscle or not.
I used a 1 inch needle and had it all the way in. I don't feel any soreness yet. First, do you think I got a muscle going below that large muscle on the top (I did not go very low, was still quite high), and secondly, is there any way to tell if I did indeed inject into a muscle?