In most aspects the first setup of a new of eGo-T tank is pretty failure proof. Just press the new tank into the atty until it completely seats, give the tank a twist. Fill the tank either by removing the fill cap and dripping or a syringe into the puncture hole and your'e good to go.
While I had a problem at first with the atty flooding, I got advice from the dealer how to correct the leakage problem.
The 'wick' is located inside the puncture tube and is made up of really straight and fine fibers and has some kind of 'metal' cap glued over the upper end, the lower ends of the wick fibers are in direct contact with and wets the heater inside the atty. Adjustment of the height of the wick determines whether the eGo-T floods and leaks juice or simply not enough juice gets delivered to the heater.
The end of the puncture tube is cut at an angle and sometimes the center portion of the tank's fill cap does not cleanly punch completely into the tank and the 'hanging chad' can push the wick farther down the puncture tube than where it should be and the atty will flood. Grab the wick's 'metal' cap with a suitable pair of tweezers and pull the wick back up until it is just even with the top of the puncture tube just to get it into the ball park. Also, avoid using a high pressure stream of water to wash out the atty. The wick is not real tightly gripped by the puncture tube.
While I explained too much about the wick in the last paragraph, I merely wanted to illustrate how important the wick height is.
Getting back to the new cartridge installation, I strongly suggest puncturing all the new carts you have at one time. I had a couple "hanging chads" when I prepared all my new tanks so I only had to re-adjust the wick height once. In my case my wick got pushed too far into the puncture tube so the atty flooded. After a failed attempt to hook the wick with a bent paper clip, I had to pry out the base the puncture tube is welded onto in order to push the wick back up into the puncture tube. A low wick floods the atty, a high wick does not pass enough juice so the vape is too lean, and the atty runs dry after a few puffs.
I was very disappointed with my new eGo-T atty at first but after I got the wick setting right I have to say its the lowest maintenance atty I ever owned.
'Nuff said, enjoy your new vaping device!