I recently started ed and rotate 4 injection sites now (glute, quad, lat, delt)

I think quad w/ 25g 1 inch is the best. It's the easiest to access and the most painless afterward. Feels as if nothing ever happened. Glute is good too, classic. I do like the lats so far, I thought they'd be harsh considering it's an area with lots of nerves - but it's going well.

I have to say that delt is a nightmare though. I remember whenever I got innoculated when I was younger for Tetanus that the delt injections left me with very sore and tender shoulders. Now I'm a lot gentler than some nurse in a school building giving out public innoculations. I heat the oil good and massage the area plenty and it's still always sore as crap! Terrible!