Is the Kanger Sub tank mini the best one to start with. This is from someone who does not understand electronics really. I have a sigelei 30W and an eleaf Istick 50W on order and next step is I want to try my 1st rebuild and hopefully not destroy my mods. A lot of warning labels have pretty much scared me off up to now. Any suggestions would be appreciated in easy to understand and needs to be basically idiot proof for this 1st timer.