Just curious what y'all's favorite RDA's are. Personally, I've been using the Mephisto with a Mutation X V2 topcap. Huge post holes on the Mephisto make huge coils for the huge airflow from the mutation, and it holds ~ 2 droppers worth of juice (About double-quadruple what my other RDA's hold). Also, since the AFC is so high on the MX topcap all the juice is well below the coils and there's no juice spitting/spraying. Anyone else mix n' match their stuff like this? xD