SpeedFreak said:there is also the assumption that your calf muscle is a dead weight. It is a key part in the generation of speed, which cannot be replaced with a piece of carbon.
but it can be replaced and at the current level of technology can probably work better for a one of purpose, unlike the normal leg which has to cope with many diffrent things. But you summed it up, it's not a level playing field and thus should be banned, which it is.