concerning wasted amounts (.2ml per draw) in drawing from 10+ml vials....
you think maybe getting a vial of b12 for example, drawing 1/4-1/2CC of it first then drawing your gear in can get around this? I'm unsure of whether it will just mix with the b12 throughout the chamber or whether it would stay in the plunger end so you're only wasting about $0.50 of b12 when fully plunged.