For me, still so new at consuming Kava, but haven't found a single dependable cultivar like that... In fact, if I go out of my way expecting something, it's usually not that great..but if relax into what happens will happens, every so often it just sort of washes over me and I get that smile... Been mixing up lately 2 teaspoons of KBR Isa Tudei with about 4 Of KBH Bokoru... and enjoying the results...