I have built two bikes with flat bars and drop bar ends. One bike is a tourer/gravel bike and the other is a city/MUP bike. I like having the controls on the flats so that when I am in traffic I am more upright while my hands are covering the brakes. But I also get all the hand positions and the benefit of being aero that drop bars afford. I will post pictures later. The bikes are NOT pretty, but they are immensely functional.