If you do a search there is a thread on here somewhere about injection sites and which are best. A study by a major University. And glutes are the spot if you want to make the most of whatever it is your injecting via IM.
Genarr3
For the guys shooting in the delts, read this article:
Injections Sites
Another thing that superficially seems trivial but makes a huge difference in plasma steroid concentrations is where you inject. That’s right, this seems utterly trivial but this study concluded that gluteal injections yielded far superior plasma levels as opposed to injections in the deltoid.
Of all the locations that nandrolone injections were given in this study (100 mg/ml x 1 ml in the glutes, 25 mg/ml x 4 ml in the glutes and 100 mg/ml x 1 ml in the deltoid), the deltoid injections yielded the lowest plasma levels of nandrolone by a huge factor, with peak concentrations being 50% lower than the 100 mg/ml gluteal injection and around 10% lower than the 100 mg/ml x 4ml gluteal injection. Lesson learned here: Only inject in the glutes for maximal steroidal efficacy.
I've done 2cc's of primo with eq in the glute and there was no pain. Also, after an injection I massage the site with my fingers and an an alcohol pad for about two minutes. Then I wait about 20 min and use a back massager on it for about five minutes. I do this after I inject all the time and no pain.