Ok, so I have 3 Mods. One I will use at home, the other when I'm out of the house, and the other as a back-up. I have an Istick TC 60 Watt, a Kangertech subox mini, and a Joy-tech eVic VT 60 Watt. I've been using the Istick for the past 3 months and the other 2 are brand new and I'm waiting on more 18650 batteries and coils/atomizers. Any suggestions on which of these should be my home device, out of house device, and back-up? VAPE ON VAPERS!!!