I received my Vapor Zeus last week and all I can say is WOW!!!! This is what I've been looking for since I began my vaping journey! I did have a couple of questions regarding the smilomizers though. I use a syringe to fill. When I received my starter kit I filled the first Smilo with out a problem. Loaded syringe with approx 3.2ml of Kamel WOW juice and slowly filled in a bout 4 different locations inside the Smilo the 3.2ml of juice. Next I did the exact same thing with WOW RY4. Using the same technique however this time e juice started to come out of the top of the center tube. This also happened when filling another Smilo with Coffee WOW juice. I was wondering if this is common with smilos or if someone could maybe give me a few pointers. Also after much reading on the forums of late would it be correct to assume that Smilos prefer Premium juice instead of WOW?? Any help would be appreciated, Thanks!