I am going to be shooting 1ml Test E with 1.5ml Masteron at the same time in a 3cc syringe.
I have read to draw in air and inject that air into the vial, then draw the oil. But, I have to draw from 2 different vials so I could only inject air into one of them.
Is injecting the air into the vial necessary, or does it just make it easier to draw? Will I have any problems drawing without injecting the air first?