I started using a syringe to fill carts and feel like I am wasting a lot more juice than the typical paperclip or drops before inserting the filler techniques. Perhaps I am not using the right gauge needles. I got them from my mother who works as an RN and can provide them free of charge. I felt it would be a good way to measure my consumption but I have 23 ga needles and the juice seems way too thick. There is also the amount of e liquid that is in the neck of the needle the plunger never pushes out. Am I doing this wrong?