I use GSO an never have a prob. 22G. Is a good size needle do it should run smooth. I pin my tren ace GSO with a 25G in my quads. Just before pinning I like to either run the vial under warm water or heat the barrel with a blow dryer before pinning. The water works best IMO. When using a microwave you run the possibility of getting it too hot and burning yourself when you pin. Someone on here said they had it too hot and it wasn't a good experience.
Lol that was me. Yeah for three weeks my glut hurt and i couldn't pin it. I felt like someone pour hot grease inside me. Fuck that hurt.
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