Well, it IS top filling lol... IF your bottles are narrow-tips and if you run your wicks with enough space for it to fit... the wicking holes ARE the filling holes. Otherwise you need a syringe or your SOL.
On the other hand, if you want side filling there's always the Limitless... though that one is 24mm (but nope, no juice control either).
As for juice control, TBH not sure how it could work unless you're running deck-short wicks. Anything longer would probably get stuck in the juice control mechanism. Hence why there aren't *any* Genny-likes (Fodi, 'Cado, Haze, Nectar, Limitless, Theorem, VeloTank, Orca) with JFC yet...
... though I'm personally waiting for some smart engineer to come solve this problem for us myself as I really like the wet, flavourful vape from a good Genny-like.
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What might work though is if they provide a way to totally seal off the deck (including the driptip AND AFC) - and I mean a totally airtight seal - for "transport"... which then can be opened to "vape". Needlessly convoluted yes, but at least it won't mess your wicks up.
In the meantime, you *can* run the 'Cado with jusssssst enough cotton that juice won't seep out the top *that* easily (too much and you'll get dry hits + difficulty refilling however... so yeah). A good guideline for "just enough cotton" is whatever fits a 3mm ID coil (coz the wick holes are 3mm too).
Another possible solution: The hybrid mesh + cotton wick. Mesh into the holes up to the deck and cotton right down to *just* the decks. Supposedly gives you perfect wicking with nothing coming up the top. Supposedly. I don't have any mesh so I couldn't try it out (and it sounds like a PITA so I'm not sure I wanna lol).
Or (like me) you can just get used to keeping your 'Cado upright at all times... I carry it around in a vertical belt pouch and even with my (old) sub-optimal wicks (I used to run smaller then 3mm ID coils) it doesn't really vomit juice as easily as you would think... unless you filled it *totally* full to the very brim and then ran around with it.
Or... well... you can get a tank WITH JFC like the Griffin. Though personally the 'Cado does win over the Griff in outright flavour and ease of rebuilding though IMHO. But... you know... at least the Griff doesn't... well... vomit up the top.
TristanX You, my friend, is a very... very dangerous man indeed. That said, I like your brand of danger so BRING IT ONNNN lol.
Really mang? Pizza? Pffft...

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You mix my FW and CLR first lorr...

Fot the avocado 22 version, when running in dual coil, filling it was hard unless u have a syringe carry with you all the time. Otherwise you end up messing with the cotton every time u need to fill it up. Well my idea was if there is a filling hole under the deck, it may ease out the process.
I like the genny style, as it gave the flavor of a RDA, just they weren't built to be as user friendly as a RTA.