Hitting veins - is this normal?

[Mr.BB]

Start pinning glutes

[Coffeehead]

Start pinning glutes

I did both quads, left delt, right glute. Anything that I can use my right hand with since I'm more steady with it. (insert jokes here)

I still could not get a good angle and had some gnarly pip in my right glute. I must have been holding it at a bad angle because when I pulled the pin out, it was slightly bent. No good.

If I pin 2-3 times per week, is 3 location sites enough? Probably not right? What else should I add into the rotation?