This may seem a bit odd but....recently I was going through my "junk" box and found a Volcano V-Atomizer. It was my very first atty and had been sitting for at least six months. After thoroughly cleaning it, I popped in on a six volt
device with a Cannon drip tip and couldn't believe the results. It's a monster! It produces tons of vapor and hasn't quit. Even on a 18650 battery, it's pretty good. I haven't checked to see what the resistance is yet but I can't believe it hasn't fried at the higher voltage. Ironically, on the original Volcano battery, I was never impressed with the vapor production. It was good enough to get me started though and I quickly moved on to bigger and better things. These are inexpensive atty's too. You can
buy one for $5.99 or two for $9.98. I'm not trying to say that these are the greatest attys in the world but they do perform well and they're cheap. They apparently are more durable than I originally anticipated. If you happen to have one of these laying around, give it a try.