Thank you UncleChuck, for the long explanation! And I agree with you. I was just curious if there were more moving parts I wasn't aware of. I'm just new to mechanicals, but I'm a fast learner

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Is the DNA20 a type of 'kick'?
The Genuine Evolv Kick 2 and DNA20 have similar specs.
The obvious difference is lack of screen and buttons on a Kick 2.
They'll both take atties down to around 0.5 Ohms and offer thermal, short circuit, and over-drain protection.
When using sub-ohm atties, they go into a DC bypass mode. The regulator doesn't buck voltage enough (if any) to allow low wattage
vaping, but if you're doing sub-ohm, you're most likely looking for high wattage in the first place. I'm not sure how much voltage regulation is applied (if any) when using sub-ohm stuff.
With regular atties from 1.5ish and up:
Kick 2 can do from 5 watts to 15 watts.
DNA20D can do from 5 watts to 20 watts.
I personally use a Kick 2 with single coil atties from 2 to 2.5 Ohms...that allows me to get the full range of the voltage regulator...from a cool 5w up to a quite warm 15w.
I've not yet tinkered with sub-ohm stuff. I never really need over 10 watts per coil, and I rarely run dual coils. What little I've run dual coils on my Kick 2 (1 to 1.5 Ohm builds)...I found the 7.5 watts per coil acceptable, tho I sensed a little more kick, as offered by the DNA 20 or a pair of DNA 12 chips would be nice to have. Have not tried a sub-ohm build yet...no need to go there for me.
Multiple coils over 1 Ohm is where the extra 5 watts of the DNA20D would really come in handy.
The sub-ohm by pass mode is great if you want really hot dual coil, or moderate quad coil configs (Only use the very best high drain (20 or more amps) batteries and be very careful if you mess with sub-ohm).
If you're happy with single coil stuff, or cooler dual coil set-ups (I.E. top coil
tanks like the vivi-nova stuff, or stock BDDC varieties)...a Kick 2 is plenty in my opinion.