Welcome
@Lyssie!
Actually, the choices are pretty endless on what to choose. When I first started, I was using 50/50
juice. In a little tank that held about 1.8mL
juice with a coil that was about 1.8-2.0 ohms (NOT a sub-ohm coil
) THAT got *me* to stop smoking.
As I've been traveling this road, I've branched out considerably, and I use higher-VG juices and run coils from about 0.25 ohm to 1.5 ohm. I have different kinds of devices and toppers that allow me this flexibility. I'm about 2 solid years into this now.
More VG is actually THICKER. PG is your flavor carrier. (MOAR KLOWDZ - go with VG; MOAR FLAVAH - go with PG) Some people have sensitivities to one or the other and have to watch how their juice is made. I'd really recommend getting a little bit of different PG/VG levels and see what *YOU* like. 'Cause in the end, it *IS* all about *YOU*. What I or anyone else likes doesn't mean you will.... That comes to flavors, too. I may LOVE a strawberry/blueberry/cream, and it might make you YAK....
What makes things "burn quicker" is the power with which you're driving your topper. I try to keep in mind that the device is merely a power source. The topper vaporizes the liquid to deliver the nicotine (presuming you have that in your juice. You can go from 0 - 24mg/ml or even upwards of 30-36mg/ml.) It is all about what *YOU* need and can handle.
To that end, however, sub-ohmming can deliver a stronger "hit" and so using lower-level nic juices will be "easier" on you (i.e. help you avoid getting "nic-sick")
You may hear about things like Mouth-to-Lung hits or Direct Lung hits. It's all about how you inhale. When I smoked, I basically took a drag while the corner of my mouth was open, so I could simultaneously pull in air. Some people take a drag into their mouth and then inhale (Mouth-to-Lung) Some people pull like a firehose and inhale directly (Direct Lung) You do what feels comfortable to you.
Keep asking questions - lots of cool people here, very willing to help!