I won't be the one to answer your questions because I did not like the 'eGo tank' system at all. It had poor taste, and lousy juice delivery to the atty, in my opinion. But, on the bright side, you at least have a great battery (or 2) that you can now use with ANY 510 atomizer or cartomizer! I would highly recommend trying some different setups to see what you prefer. If I were you... I would try the 'eGo Mega Dual Coil Cartomizer'... Type B, and also a 'Boge LR Cartomizer' as well. There are a ton of YouTube vids out there with tips and tricks on filling/using both of those. Plus, your eGo T will also accept any 510 atomizer, low resistance or standard... so you could buy a 'drip tip' and also see how 'Direct Dripping' works for you. (Also more YouTube vids on 'Direct Dripping') The 'eGo Tank' never really worked as well as I thought it should... plus it doesn't hold enough juice for my liking. My current favorite setup (and ViperRon's) to use with my eGo T battery is definitely the 'eGo Mega Dual Coil Carto'... that's for certain! They hold a bunch of juice and work great !! Good luck, and others will certainly chime in shortly!