I've been using my 510 passthrough with ego-t atty for a many weeks now. I also use kr808d1 passthrough and a drip tip in the cartos. I get the kr cartos for about 1 dollar (in bulk) and the ego tank atomizers are now 4.40 in 10 packs (they last ages if you boil and clean them once a week and dry them properly then wick them properly) i only use batteries when absolutely necessary because i find it wasteful. But i have a desk job so it is easy.
I recommend getting passthroughs and plugging them in to the usb power plugs. Cheap ego-t atomizers from vaporhawk.com, not sure where the best place to get passthroughs is at the moment but it really doesn't matter because they last for ages if you don't abuse them. It's about learning.
Never had to resort to mods special gear because i've had practice. Btw, 510's are the ....tiest atomizers. And i have to say they were the ones i quit smoking on, but it didn't take long to find better choices. The internet was full of misinformation about how good they were, I tired a fresh one just the other day and wow they are hard work. Such hard work to keep alive without burning them out.
The usa was big on the 510 meanwhile europe was using the far superior 808d-1 (in my opinion) I still use the 808d-1 to this day when i don't want to look like i'm sucking on a sharpie. (ego) But using 510 atomizers is no longer an option for me. I have heaps of fresh ones lying around and i can't bring my self to risk that burnt wick ever again.
Get lots of fresh ego-t attys and kr-attys ditch the kr808 cartos once a week or sooner and clean the ego-t attys in boiling water.
Never smoke them dry. You will get it in the end. the different flavor of ego to kr 808 is a nice change. Good luck