The Ether Boro RBA (by Suicide Mods x Vaping Bogan) does kinda rule. As I said there is a lot to love about this RBA for BORO tanks. I under-wicked it multiple times in the restricted lung mode, but managed to nail it pretty well for the MTL. The MTL on this is more flavorful than some others.
Bums me out this is basically impossible to get into a standard BORO tank.