I'm like raccoon, I like to tinker and mod things, sometimes just for the sake of modding but mostly in the name of improvement, and yes I have ruined some perfectly fine things in the name of "improvement"
for me the main appeal of the dna20 is consistency and extended useful battery capacity. on a mech the vape starts out extra strong with a battery fresh of the charger, then it kind of levels out for a bit, then it starts to drop off and by the time the battery reaches below half way the vape winds up weaker so a fresh battery is swapped in to regain the stronger vape, or you continue with the half dead cell getting weaker and weaker, and weaker still, where with the dna you can get the same fresh off the charger vape from beginning to end, still get the fresh off the charger vape even when the battery is down 80%, long after the mech goes to wimpy. the drawback is the limit of 20 watts, so if I want a .9ohm vape then I can have that throughout the battery cycle, but if I want the equivalent of a .5-.6ohm or something, and want to go to 30 watts or more then nope, the dna20 can't do that. it's a tradeoff.