That's exactly the thing. I will take more launches. So overall its still true. If you did the exact same flights, overall you would end up with many fewer kg l

That's exactly the thing. I will take more launches. So overall its still true. If you did the exact same flights, overall you would end up with many fewer kg landed on Mars. But of course that inefficiency is gone be buffered by more refueling. Still calculate the lost efficiency on the scale on a mars base and 1kg is a major. Not to mention the system suggest above.