im not sure with dark horse you have, but the one I have, you can flip the AFC to only cover half the holes vertical-wise, then you put it in single coil airflow mod, allowing only half of 2 holes to allow airflow. Seems like a lot to do just to get some flavor but darkhorse really isnt built for flavor. If you want flavor id suggest getting a rda with a smaller air chamber or ones with airflow holes on the deck that point upwards to the coils. the main thing i found to get more flavor out of any rda is to really reduce the amount of airflow though, so most of what you are inhaling is dense vapor instead of vapor mixed with tons of air. You can get flavor out of any RDA really if the airflow options allow you to give yourself a tighter draw. I can get good flavor out of my Dark horse and mutation X if i restrict the airflow to minimum and use 510 tips.