The smaller gauge the needle, the less PIP you will get (post injection pain). Also the slower you inject, the less PIP, so smaller gauge is slower. Some oils are thicker and harder to get through the smaller gauges, Test e is usually pretty thick.

Personally, I use 25 gauge 1 inch needles for pretty much every one, it's small enough to not cause much pip, and you can fill the syringe with a bit of patience.

Did you do ANY research on Steroids? or just order what was popular? if you had done your research you would have known what size needles to draw and pin with.But saying that...draw 18g shoot 23g.

if you are lean 1 inch is fine for glutes. I like 23 gauge to shoot and 18g to draw with

I draw with 18g 1 1/2". 23x1 1/2" glute, 23x1" in quad and delt.

23g, 1" is best for me. i stopped using 1.5 needle. to deep for me

I actually use 27G to shoot with (drawing with 21G). It takes a little bit longer when pressing since it's so small, but almost doesn't feel a thing when you put it in the quads :o)

I draw with a 22 gauge needle and for glutes I shoot with a 22 guage 1.5" needle. For spot injections I use a 5/8" 25 gauge needle.

I draw with 18g 1 inch and pin with 1.5 inch 23 gauge into glutes. ventro glutes (google it), and quads

Draw with 21g (Green)
Pin with 23g (Blue) into glutes

Glutes....23 x 1 1/2. Quads i prefer 25 x 5/8. 25 takes more time but I'm in no rush. Get a box so new needle every time