I like that option. I don't like that you lose the changing of the led regarding how much charge is left but it's worth the feature. Some of my heavier flavors - mostly
vape well in the 'constant' (3.4v) mode with 1.8 Tabac BCC's/T3's but occasionally when the draw gets a bit tight, I'll go in the unregulated mode and it tends to 'clean up' the gunk on that atty. But too long in that mode will burn most flavors with the 1.8Ω coil. Coffee can hold up to it but that's about it.