When I researched the ZAP last month I came to the exact same conclusion. And not just leaking, but the cap apparently pops off rather easily if you try to carry it around. Phil Busardo called it a "cigar" atty in his review, meaning that it's best used for certain, limited occasions when relaxing at home. Cool, but not $150 worth of cool for me, who doesn't exactly live a gentleman's life of leisure LOL.
I have a Cobra coming in the mail, which will be my first "top shelf" RBA, but the Killer has moved to the top of my wish list. This is the only rebuildable device I've seen that can be used with standard carto tanks, replacing the disposable carto. What's the fish net filler material called? Seri? Sera? Google isn't turning anything up, so I must have gotten it wrong... Adeline, I look forward to your review of the Killer (I wish it had a more Flower Power-like name, but a rose by any other and all of that...)
RE: the ZAP. Yeah, I hear you. I like to throw my provari in the case that I use (soft material), throw it in a bag, or throw it directly into the car and go. I hated VVNs because they leaked like crazy (I apparently overfilled them all the time). If a next-gen ZAP comes leak proof and pop-cap proof, I'd be willing to give it a try... After I'd experimented with SS mesh on a cheaper device. Still haven't ventured THAT way yet.
The killer instantly intrigued me. I always wanted to try carto tanks. I'd pick out a phiniac and put it in the shopping cart every now and then.. But I dislike cartos. They don't last that long for me, you have to fill them JUST right (and often! like an atty, ugh..), and I was not excited about having to either buy pre-punched, or waste a lot of them learning how to punch. Too much effort for a disposable piece. The way I'm going, I try not to buy disposable hardware.
So when I saw the Killer (I too am not sold on the name), I was very excited. Took about a day for me to decide to give it a shot. Bought that phiniac I always wanted, and a second thinner tank. All glass.. Been wanting to try some citrus juices but afraid of what that could do to the Drunker. And I don't like dripping! I have an A7 for testing my DIY but I don't really enjoy using it for lounging around!
Apparently they're shipping a ceramic wick in it, but of course I'll be trying all kind of different things. I'm excited to tear it down and put it back together. With the ceramic cup, it should rebuild similar to the Drunker and the VVN, with some major differences.
What fish net filler material are you talking about? In cartos? I thought that was a poly fill batting? Not sure.