I wanted something small enough to fit in my pocket, powerful enough, and that would last me for the day. I really liked the looks of the voopoo Vinci. For the most part it is exactly what the doctor ordered, except I can't get the thing to stop leaking. I have tried to only fill it half way but it still leaks. Guessing I'm doing something wrong? Any suggestions other than wrapping it a paper towel to keep juice from getting all in my pocket? Thanks!