So i started vaping in November 2013 with a ego c-twist and davide glassomizer but i wanted more. I then get a itaste svd with efest 18350 batteries and added a kanger protank to it in the beginning of January. Beginning of February i buy a ego-w4 with a nzonic clone with 2 18650 sony 30 amp batteries. And now i have my eyes set on buying a authentic terra mod. Has anyone ever used terra mods? are they good? Also whats your take on clones vs authentic?