I'm pretty frustrated with my cartos as well. Just not satisfied! I did buy some fluxomizers from GotVapes & am really really pleased with them. They're not perfect, the tubes do seem to crack eventually, but they also sell clear replacement tubes pretty cheap. I might try the stainless steel they're also selling, but it's fun to be able to see your juice. So comparitively with the cartos which I'm dripping into constantly without satisfying results, I just fill the fluxomizers (come in regular .8ml & XL 1.8ml I think) & vape till I need to fill again. I love them. But it currenly seems they are sold out, I hope they restock soon!!
I have all these cartos I have to vape up or I'll feel wastefull. I think I'll be going exclusively with fluxomizers in the future.
Also I bought some swedish snus for those high nic fit moments. Don't like the taste or the smell of the snus (am I spelling that right?) but yes, after 10-20 minutes I wasn't having the nic fit anymore, it really worked. I don't think I'll continue with snus in the future, but who knows.
Good luck Adrena!!