You can use any rda you want, just have to build 1 ohm and above.
Fit / size wise I used the Atomic 18mm, and it was the perfect size/match for me.
The Atomic is made for single or duel coil/airflow control, but it is tiny to build on.
Gives great flavor(small chamber and all that) but holds next to nothing as for as juice well.
Good luck, anything will work , just might be top heavy looking and feeling if you go with a 22mm rda.
Your right it might not be the best combo and I plan on buying another mod soon but until then I need something better than my nautilus tank and I have wanted to get into building so this way I get some experience and be able to a at least try my hand at it and get an idea of what to expectwill 20w be a warm enough vape for you?
on a 1.2 ohm coil I vape at about 23w.
drippers and istick 20w will work but to be honest its nit a good combo as your limited to what coils u can build and the limited watts u can vape at?
Your right it might not be the best combo and I plan on buying another mod soon but until then I need something better than my nautilus tank and I have wanted to get into building so this way I get some experience and be able to a at least try my hand at it and get an idea of what to expectwill 20w be a warm enough vape for you?
on a 1.2 ohm coil I vape at about 23w.
drippers and istick 20w will work but to be honest its nit a good combo as your limited to what coils u can build and the limited watts u can vape at?