I am reading "The Carver's Almanac" (https://www.alpinecarving.com/binding_setup.html) and I have a question about "setback":
"After you shift your weight forward to initiate a turn, your center of gravity should be over the apex of the sidecut. In order to achieve this geometry, the midpoint between the two bindings must be set back from the apex of the sidecut to compensate for the forward weight shift. The apex of the sidecut is the center of the effective edge, not the center of the board length. This setback is typically 2-4 cm. Board makers shift the two insert packs rearward by this amount, so that you can mount your bindings symmetric to the insert packs and get the right setback. Some manufacturers, like F2, specify on the topsheet pre-marked stance positions so that you know where to mount the bindings to achieve the recommended setback. If there are no pre-marked stance positions, mount your bindings symmetrical with respect to the hole pattern. However, binding setback has a large impact on carving performance, so it's something you should spend some extra time tweaking:
Incorrect binding setback can cause bad habits. If you have too much setback, you will find yourself breaking at the waist to get your weight forward. If you have too little setback, you will find your self riding the back of the board all the time."
In particular, about this; "If you have too little setback, you will find your self riding the back of the board all the time."
I thought, if we have too little or no setback, we move our center of gravity to the nose of the board and we have to find ourselves riding the nose of the board.
Could somebody, please, explain to me why moving our center of gravity to the nose, we will find your self riding the back of the board?