These look awesome. I got to check one out that someone had at a local vape shop. I bid on the one at vapefest, but my bid was a bit lower than the winning bid...quite a bit lower. Oh well.
I was reading a few pages back and saw a lot of questions about cartos and VG. I primarily vape carto tanks, and thought I mostly vape 80/20 pg/vg, I've vaped plenty of >50% VG liquid in carto tanks. For VG, I've found that punching two medium-large holes and two pin-hole sized holes, works like a charm. If it's 75% VG or more, i'll still sometimes have to take a few primer puffs even with the 4 holes, but not to the point of being inconvenient.
Lately I've been doing the 2 tiny and two bigger holes in all my cartos, even for my usual 80PG mix. I don't get any flooding, and I find that the life of my cartos has been extended, compared to when I was only punching two holes.
I should note that I use Boge cartos. I think the smoks have a less dense filler, and may flood with 4 holes, no matter how small. I used dual coils for a brief period of time, and one of the reasons I abandoned them was because they flooded too easily.
Anyway, as a fan of carto tanks and VV box mods, the Billet Box is pretty much exactly what I'm looking for. I can't wait for the release!