I have heard that some guys use the same pin to draw the oils out every use but use a new, fresh pin to inject.
I was thinking of doing this since I only have like 4 18g pins left and all my injecting pins are 25g and we all know what a pain in the butt it is to draw with a 25g.
However I have my doubts on drawing with the same pin every time cause I don't know how sterile it is even if you wipe the needle down with rubbing alcohal every time.
Let me know what you guys think.