If you like the Protank 2 and you can accept a polycarbonate plastic tank, have a look at the Kamry X10. It's a 4ml capacity tank that takes the Kanger heads. It also pairs up great with 7/8" (22mm) tube mods. It has a metal sleeve around the plastic tank, with big viewing windows. Removable drip tip, too.
Another really nice BCC system is the SmokTech Aro. It's a slightly larger competitor to the Evod and pairs up nicely with Ego sized battery systems. The drip tip is not removable and it doesn't take the Kanger heads. But it vapes like a champ and looks good doing it.
I have two Protank 2's and one Protank 1. They've been outstanding performers, too.
All of my systems are BCC now. Not a single top coil or carto in sight.
Another really nice BCC system is the SmokTech Aro. It's a slightly larger competitor to the Evod and pairs up nicely with Ego sized battery systems. The drip tip is not removable and it doesn't take the Kanger heads. But it vapes like a champ and looks good doing it.
I have two Protank 2's and one Protank 1. They've been outstanding performers, too.
All of my systems are BCC now. Not a single top coil or carto in sight.