Vuse vibe compared to their solo, good comparison, and will answer some questions, help you save money, and give you ideas.
More info & photos here;
VuseVibe at my local convenience store was $22.85 Retail.
TANK WON’T FIRE – solution;
With the ego/stick type batteries, the center post can get smashed into the body while tightening it on the charger. If you have a combination of ego & tank and it doesn’t fire, try prying the center pin up just a tad using a wooden toothpick. Work it back & forth a little to lift it and try the tank again until it starts firing.