I gotta say I'm loving these lr atties I got from madvapes. I have been using normal joye atties on my chuck @ 3.7 during work and it was lacking. The 6v setup was a little too much for my taste, my atties(3 rip), and most juices I have...but I don't even touch my PT since I got these LRs. It feels exactly like a PT pull on a normal joye atty EXCEPT the bauways have MUCH MUCH better airflow.