I also Race in southAfrica and The CY motors have only been around for Three months , the boats with these motors are not up to speed yet so time will only tell . I have run a full mod Zenoah For over a season now with no problems . If you buy a Zenoah motor the carb comes loose in the box and there is no Manifold with the motor . Only RTR boats come with complete motor witch is put together buy the boat supplier , not Zenoah.