Yeah and it also depends on the material the vial stopper is made of. Some are harder than others but either way 18g is harder to push through. Needle size is what kept me from using aas in my...
My needle exchange gave me 18s to draw, i think they're mainly used for insulin, i tried using for it drawing a vial, and it was insanely hard to push in, so i stick to 21s for drawing and 25s for...
Bump. All these deal are costing me $$$$ I need to work more OT just to save money. ;)
Maybe someone should sticky what sizes to use, I use 25 "1 for most body parts,