Hi and welcome. I don't understand "build." What are you building in an Atlantis? That's a prefab coil tank and, AFAIK, it doesn't have an RBA adapter. Flavor is a function of a number of interdependent variables involving equipment and juice. Coil value, wick type, applied power, air flow and flavor percentage in the juice. There isn't a lot you can do with prefab coils. You can try switching coils and adjusting air flow. Most flavor chasers prefer lower watts, higher value coils and fairly restrictive draws, as this increases the vapor component, versus air, in the vape stream. Your mod does not offer power adjustment so, like a mech mod, all you can do to vary the applied watts is change the coil. How much this will help you, I am not certain. Consider: a) buying a flavor dripper, like a Plume Veil or Tobh clone, or a Wotofo Sapor, or a flavor RTA, like an Augvape Alleria, and learning to coil them; b) talking to your juice provider to see if you can get extra flavor shots in your juuce, or goung DIY and making it how you want it; and/or c) looking at a variable wattage mod.