I dont own one, but alot of people are using the Ego Twist batteries. You get the option of variable voltage in a small sized battery. Throat hit comes from the nicotine level along with the amount of PG that is in the e-juice you use along with higher voltage to achieve a warmer vapor... you will just end up adjusting the voltage to taste, but basic rule so you dont pop your attys is, the higher the ohms the higher the voltage can be set to. High voltage on low resistance will possibly pop your atomizer or cartomizer. I personally dont like to use a atomizer with the cartridge tip at all, if i use an atomizer i just direct drip 3 drops of juice into the center of the atty and put a drip tip on it or you can use an empty cartridge tip as well. I personally like to just use a cartomizer, which is like a atomizer with the poly fill material wrapped all in one piece. Look up a video on how to fill a carto via the condom method, works very well for me. After you fill the carto with the condom method (new empty cartomizer) you can just top off the carto with a few drops of juice to keep the poly fill wet so you dont get a dry burn, i tend to just keep a eye of the filler and top it off when it looks dry. An atty cone is basically just a decorative piece to make it look nice, however they also can tighten up your draw a bit, which can be a nice thing depending on what you like.
Short answer/personal taste,
Id say to buy a ego twist with the highest Mah rating (higher Mah longer battery will last per charge) get a pack of cartomizers at 2.0-2.5 ohms (or Regular resistance as there called on many sites)
Get a few 10ml bottles of various flavor e-juice ( i like the juice from ivape.net myself ) at the strength nicotine you want to try, i use 24mg of (super high i think its labeled on ivape ) i like there Peach, carolina cured(aged tobacco), and honeydew flavors the best.
make sure you get a charger with your ego batteries, and be sure you get 510 connection batteries and cartomizers
i think this will greatly improve your vapeing experience, hope this helps and dont give up.
this information is just what i have experienced and in no way should be considered the only options
