For experimenting with new flavors, I use a 510 USB pass-through. It's small & always at the ready, whenever I want to play. For that fresh raw atty flavor, I've recently been doing something else - "Bogge carto-dripping":
It sounds strange, but I now have a carto-condom always at the ready, on my desk. I fill it about 1/4-1/3, and top off my carto frequently. I've now become accustomed to how much my carto needs, based on how much I've drained it. I don't plunge, but let the juice get sucked-up, in the carto. Whatever doesn't get hoovered is around for the next "drip". For me, the flavor from a perfectly-filled Bogge Carto is equivalent to dripping. It's fresh, juicy, and delicious. I'm guessing I get 15+ drops, per top off. When the flavor degrades a bit, I repeat. I'm becoming accustomed to the process, and there's just something rewarding about watching that warm carto suck up the juice.
I will usually blow the carto lightly, into a paper towel, just to ensure there's no excess juice. Lately, as I've only let the carto suck the juice, instead of forcing it, there's almost no waste.
Then again, my standard dripping platform is just a 510 USB pass-through, though I have played with LR atties. And I'm just a newbie. So, YMMV...