When you say "dct", I'm assuming you are meaning dual coil carto (DCC). If so and the DCC is 1.5 - 2.0 ohms, they just won't work on an ego twist due to the weak 2.5 amp switch they use on the twist. PV's such as the Vamo, Provari, etc have much better switches than the twist and can use just about any carto or atty without a problem. I use 1.5 ohm DCC's on the Vamo (5 amp switch) and they work great at 4.2 volts and higher. No burning at all. The twist has limitations, unfortunately.