I love v4l...I got the XL starter kit and everything works good for me...I never liked 510's or Attys, I think there to much of a hassle, with less than decent results...I'm not a vape king, I don't know it all, but up to date v4l models and carts are the ebst I have dealt with...The Passthrough is nice cause I don't waste battery power when I'm on the road or in my room or anywhere else my laptop might be...The disposable carts are extrememly cheap and can be used multiple times...Everytime I have some extra money I order more just to have, but basically use cart and refill it until the taste is off or the vapor production is low...When either happens toss em to the side but don't throw em away..When you have a couple like that and have a few more to use in the mean time, boil them blow them out and set them threaded side down to dry out for 24 hours...When it's all done, bam basically a brand new cartomizer...I have maybe 50 or 60 in total and probably have only had less than 5 die thus far....Also if you need a cheap liquid V4L is cool...But that's the only one single problem with v4l is the liquid isn't top notch...So I order all my parts from v4l, but I prefer blue mist vaping for liquid...
In general it is through trial and error that you discover what you like what works for you etc etc...It's never the best the first time, liquid isn;t always what you expect etc...Another reason I like blue mist vapor is they do samples...The twenty dollar sample (after shipping and handling 26 in the US) comes with 5 different 10ml flavors and stengths of your choice...I started on 24 and went to 36 never had a problem, but I'm starting to ween down next time I order the liquid...I only did it because in my head it was just an extra precaution to avoid feening a cigarette...But yeah best of luck to you, if something goes wrong but a forum, PV's are amazing it jsut sometimes takes a little while to get used to...Good luck