Most common mistakes made by new vapers are:
1. Not allowing sufficient time for juice to saturate the wick before taking that first vape. This can singe the wick, reducing it's wicking capacity, life expectancy, and promote leaking. Allow a few minutes of soak time before vaping can increase one quality of vape.
2. Over tightening atomizer onto battery device. This can bend the coil wire on some attys, causing shorts or hot spot, producing dry nasty burnt hits. Also can fry the coil, and also shut off air supply, causing one to suck to hard and flooding atomizer, eww, what's this dripping on me??
3. Not properly maintain and cleaning atomizer. After extended use, all coils and wicks will start to gunk up, quality of vape will decrease, and possibly some dry hits start to occur. When vape production starts to suffer, it's time to do some maintenance. For some this means changing the coil head, or soaking and cleaning wick. For those that build, it's simply time to pull the wick, dry burn the coil, re-wick, saturate, assemble and fill, we's good to go till next time.
One of the frustrating parts about vaping, is that nothing comes with instructions. And it's up to the vaper themselves to figure it all out. Vape is a progressive hobby. The more you vape, the more one learns. Problems with some of my early vape gear is what led me to the ecf. Then enlightenment began. Once I found the ecf all my questions and concerns were discovered, and is when I really became a vaper.
The main answer to all questions seems to be, keep messing with it till you get it right. Fraking hate that answer, but it applies in many vape situations.
Vape long and Prosper.!!!
P.S.: The cat bites.!