"Break free of" is not how I would put it. I have a Smoktech VMax, (5 volt) Woo, and (14650/3.7 volt) e-Power, and Joyetech eGo 650 and 1000mah and now Joyetech eGo Twist 650 and 1000 mah
batteries. Right now I happen to be
vaping on one of the 650mah Twist batteries with a Smoktech DCT
tank fitted with a Boge 3.0 ohm single coil carto. Very pocketable, great performance, looks good too.
Why I would delete the Twist from my arsenal of PV's I have no idea.