I've got a 50 watt eleaf with a rda (not even sure which rda lmao I got it off a friend) and it's currently just at .4 ohms because I'm too lazy to make a nice build lol
My other setup that I use more regularly is the ipv2 mini 70 watt with the aspire Atlantis v2.
I prefer using the tank for daily use because I can fill it up in the morning and be all good for the day. I use my rda whenever I'm chilling with friends because it chucks.