You are both correct. The problem is with the Crown. It has so much airflow I can not get a warm vape with 1.2 ohm coils. In fact with the airflow open only a fraction it is not a good vape. The .5 coils are better but in the 50+ watt range he is running the .25 shines. It says it is for 80 to 100 watts, but with my juice 60 is pushing it. The funny thing is the Crown is cooler at 55 watts than my NEBOX at 35, so it has to be the airflow. (of course the Crown is putting out 2 to 3 times the vapor)
It is defiantly a cloud producing tank. I only use mine at home, and as a backup, but it is by far my favorite tank!