Hi caged. I have the Joye 510 and I had been smoking 10-15 cigarettes a day, Marlboro Lights. Of course, out at bars or a real hard/bad day could see me smoking a pack, maybe a few more in 24 hrs. I tried 24mg first, ordered it filled in the carts with the kit. It was too much for me. Three 4-second light drags on the 510 and I'd have a head rush and the throat hit, at least from that juice, was quite harsh. It was much stronger than my cigarette and made me feel like I might cough. This was also totally unexpected for me. I didn't think
vaping would feel so much like smoking. Anyway, I ordered some 12mg and 18mg juice from VaporBomb (same flavor) in a 80/20 PG/VG mix and the throat hit is much lighter, but still there. It was closer to what the hit of my Marlboro Lights felt like with 18mg. With 12mg I am able to take several drags (6 or so) before feeling satisfied but not light headed. With 18mg it was one or two less and the throat hit was a bit more pronounced. If I kept drawing on the pv after I was satisfied I would get light headed.
I've only been at this a week, but that has been my experience. I'm still a bit torn between 12mg and 18mg. I think if I could get a flavor with a bit stronger throat hit at 12mg I'd be good. As is, I am leaning a bit toward the 18mg and
vaping a little less often.
I'd say try to get a flavor you like in sample sizes at 8/12/18 and see which works best for you, your device, and how often/long you'd like to vape at a time.