Ok I read Katya's list. Do the litecig premiums run hot? I don't think I like throat hit because I think it burns my throat. Also I am electronics stupid so talking about ohms and resistance will confuse me. If I understand it, I will forget what I was told a few days later. So telling me to use one with certain ohms or resistance will help but I will have to figure out where to put the info so I won't lose it.
Basically I need them to not run hot (the V4Ls get so VERY hot)
Produce good vapor
They need to last
I don't need throat hit (it seems like it makes my throat burn but I am not sure)
I need them for my ego and kr8
Affordability is helpful
It's really not that hard.
Your kr8 batteries are true 3.7v batteries, at least fresh off the chager, so you want a carto that's around 3Ω for a safe, not too hot, satisfying vape. Litecig's kr8 cartos are in that range, so are the Turbos and V4Ls Cool Carts (V4L premiums are much lower resistance and burn fast, the WOW cartos are moderate resistance).
Your eGo delivers only about 3.1v under load, that it, with an atty attached to it, so you may prefer a moderate resistance carto, in the 2.5Ω range. But those are hard to find. I like AZ Smoke Free 510(2.4Ω) cartos, the are good, inexpensive, but not the highest quality. Worth a try, though.
Boge 510 cartos come in two "strengths:" standard--3.0Ω and LR--2.0Ω. LiteCig sells both kinds. Start with the 3.0Ω, they may be all you need for your eGo. I like them a lot.