My spin twin in career mode with 99ovrall bowling rating always pickups 4/6 wkts in between in T20 with econ rate around 6rpo , I always cleanup the opposition around 80-120 mostly against weaker teams as my pacer struggles to pickup wickets so it creating an impression of spinners being OP but then when I play against good opposition they do manage to score around 150 easily and smashing my spin twins as well , i think attributes do have a big impact on gameplay which is nice touch , still spinners needs to be toned down in terms of wicket taking ability.