I over fill the vial with air from the syringe. I pulled the needle out as far as it can go, without going past the rubber seal. Every time I can get every drop out of my vial. If I’m short the amount for my injection and have to use my new vial. I use a new syringe.Tips for drawing the last test. cyp. from the bottle.
Syringes fill great till I get to the last of the bottle.