BR mentions Backspin in its practice tests, but never explicitly says how it affects the ball. 1.)I know that it increases Height and Flight Time. But does it affect radius? Also, I understand that the dimples on the golf ball allow it to create a greater pressure difference between the bottom and the top of the ball. 2.) Is this true for a regular backspin, or is this pressure effect exclusive to dimples? Basically, do the dimples on a golf ball introduce new elements to the ball's backspin flight, or does it just exacerbate properties already there? 3.) Does anyone know what the flight path of a regular backspin cannon ball will look like compared to a normal cannon ball launch?