Last thing. I 2nd the billow. My friend has the zephy and it can be a ...... Leaks alot, deck is small. The airflow is nice but I would pick the billow over the zephy
The Zephyrus is tricky to wick and so can leak if if isn't wicked properly, but that's all, oh, apart from trying to fill it when it already has juice in the tank, that's a no no !. The deck isn't small in the Zephyrus, i don't know why people keep saying that, it's easily big enough for 4 coils, does that sound small to you ?. I have a Billow V2 and since i've been building a qual coil assembly in my Zephyrus the Billow v2 hasn't been used at all..............
Anyway !,........ the wicking of the Zephyrus has to pack out the juice channels enough to prevent any potential leaks. Start with too much and just trim it down length ways and width ways so there isn't too much to prevent the juice reaching the coils but still enough to stop too much juice seeping through and flooding the chanber. So having too much wick would be preferable. I admit that sometimes when i have to rewick the Zephyrus i do it incorrectly and it either doesn't wick enough or it will gurgle and leak. If that happens i suck out the juice with a long tip dropper bottle, unscrew the base and try wicking again. Once it's done properly it's good for weeks and worth the 5 minute hassle.
The picture i provided above i found on the net just to illustrate a previous point. I'm using mine so i can't take a picture of it. My coil assembly is made up of 4 coils with 2.5mm inner diameters each having 6 wraps of 25g kanthal with a combined ohm'age of 0.18. They fit in perfectly horizontal, unlike the picture above (which appear to have 10 or mare wraps each and are set at an angle so they fit in).
If i were to use my Billow V2 right now i'd have similar problems with the wicking as i do with the Zephyrus. So leaking isn't so different with the Zephyrus as it would be with any other RTA really. Again though i have to say that because the Zephyrus is top filling it needs to be empty first before it can be refilled and that is probably why some people don't like it. If you take out the rubber stopper to fill, the tank instantly loses it's pressure and the chamber automatically floods. Another point i should mention is how the entire base, including the build deck, unscrews as one piece and once removed leaves nothing holding the rest of the tank together. It means that the coils and wicks cannot be adjusted once the tank has been filled. If the wicks have been properly fitted though then the Zephyrus is good to go for weeks without having to change or adjust anything, including the wicks. Once it's up and running there are no problems with it at all. There is just a small learning curve when you first start using it that's all. Which i have no doubt is the reason why some people give up on the Zephyrus. It is totally worth the time and effort to figure it all out though. My Zephyrus never leaks and works perfectly.
