I've used the 510 dual coil low resistance (1.5 ohms) ones ones made by SmokTech with my ego battery. I'm not sure if it is in my head but they seem to me less sharp, a little warmer than the comparable non-clear ones. I've also tried the new jumbo ones, 3.5 ml. I like them both, but they seem to get sort of muddy or bland tasting the 2nd day of heavy vaping - more so perhaps with the 3,5 ml's. Mad Vapes has them and they are all over the web as well.