if You want battery life i would get a MVP to start of the size is not you then my girl still using evod starter kit they work great and is money is an issue and you enjoy the vape remember the main mission is to stay off tobacco. Not to spend a bunch on money. believe me i have about 1500 Easy into vaping in the last 6 months and i still see my self enjoying my evods and Kanger Pro tanks. If Tube style mods what u think would be more a fit for you then there great. I use a cyborg or my provari or even my mech mods all the time. Regulation is awsome so is un regulated. Being in the army i find it alot better to carry batteries then to have to know where i can get power in the field. So thats my route.