i have about 30 vivi novas (I got them cheap and I like to always have a different flavor ready to go) anyway there isnt to much to the vivi nova to get it to work really well. I found the 2.4 ohm heads to work the best at about 8.5-9.5 watts (or 4.5-4.8 volts roughly) but that is all personal preference. Every once in awhile I'll get a head that gets hot legs which is more or less when the wire inside the head that isnt wrapped around the wick gets hot and burns the juice producing a terrible taste (burnt taste) but that sometimes goes away after use or sometimes the head needs to be changed depending on how bad the legs get hot. These are easily rebuildable as you can see from the video posted above, that is a great video to watch if you own a vivi nova. The other thing about the vivi nova is that after you fill it up with juice you have to make sure that the rubber grommet that is attached to the atomizer head is perfectly aligned with the hole in the metal mouthpiece cap, if you fail to do this you will have flooding and leaking issues. You can align it with a small flathead screwdriver. As kiwivap said when the juice gets low make sure you keep the wick wet or it will dry burn (I personally always tilt it up and I have never had an issue other than the occasional flooding) If you want to try a mesh wick it does work but it takes a lot of practice to get it perfect and IMO nothing works better than the standard silica wick but definitely try to rebuild it I think its a good skill to have say if you ever got a genesis style RBA. The final tip that I have is that a lot of the heads are about .2-.4 ohms off most of the time after break in the come down to what they say they are supposed to be but sometimes they are off so just check them. Other than that its one of my favorite atomizer/tank/RBA whatever out there aside from the genesis style RBA's, I hope you have good luck with it.