The auto firing is very hit & miss even on the DTL coil. It;s probably because there's too much airflow & if it's working by sensing pressure then there's not enough vacuum being created. There is a raft of PnP coils that are compatible so there should be something to suit. They do market this as DTL/MTL but as already said it's full bore DTL or slightly restricted DTL. I couldn't find much difference when rotating the pod but guessing the higher ohm coils also help to restrict the airflow. The flavour on the 0.3 coils is bloody good for a pod.