I traded a 3 ml tank from Electronicstix for a battery. I'm using a Boge LR dual 510 carto. What would you recommend as a suitable substitute for the boge. I would like to stay with the standard size so I don't have any part of the carto sticking out of the top of the tank. Not to familiar with carto's. Would a single coil work? I'm normally a 306-510 dripper, but i don't think i can go back after receiving this tank. Any input would be appreciated.