I know that sounds dumb, but I have never been to a competition and I have no clue what touch pads look like, how much room they take and how low below the water they are situated...Also, can you somehow miss the touch pads when you hit the wall or not press hard enough on them and not stop the clock?And how is it doing turns with touch pads on the wall?Are they not an unwelcome thing to land your feet on at turns?