I've been DIYing for a couple of months now and don't use needles. I don't measure the ingredients out by milliliters but by number of drops (assuming 20 drops per ml). Of course, the flavor extracts already come in dropper bottles so they're no problem. The VG (Humco brand from WalMart) comes in a plastic bottle with a screw cap. I replaced the cap on that with a large dripper tip. I bought several of those with bottles (100 ml maybe, idk) from Hobby Lobby (item #102194). I also use those bottles for unflavored nic liquid, PG, and vodka so I can squirt drops straight from the bottle. I fill those up from the original bottles when need be with a large pipette (scored a bunch of those for free, my wife works in a lab).
I like having it set up to where I don't have to fool with pipettes, droppers, or needles everytime I want to make some juice. Counting drops works really well for me. My juices come out consistent enough for my liking.
I like having it set up to where I don't have to fool with pipettes, droppers, or needles everytime I want to make some juice. Counting drops works really well for me. My juices come out consistent enough for my liking.