With those wide open juice channels (?) to me it looks real easy to have flooding issues... especially if you carry this tank in around in your pocket maybe...looks interesting, but not enough to order one, I'm very happy all the way around with the 25, least for now anyway, lol, thx for your post and comparison [emoji106]
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Mine has never leaked a drop.
I've had far fewer wicking problems than I did with the Griffin 25. It's not anywhere near as confined and picky. Wrap large diameter coils, stuff a lot of wick in there, and tuck it all into the juice channel. Easy. As long as you've got the juice channel filled with fluffy wick you're good.
The Griffin is much more picky. Too much wick is a problem. Got to get it in 4 smaller juice channels without fouling the threads. Got to be more careful of the length of the tails. Too much wick leaves a wad at the top of the juice channels which can cause problems. It's just more confined.
I suppose the Griffin 25 would be better for people who use smaller diameter coils or single coils and thus, smaller wicks, but if you're wrapping 2.5mm or larger coils and working with big fluffy wicks the Herakles is much easier and works better.
And it has better air flow. It's the first subohm tank I've had where I don't run it wide open. You can get HUGE amounts of air through it.