For many years surfers have been seeking perfect equipment and have been blessed with the availability of being able to access highly skilled craftsmen that can custom build your vision of that perfect board.
With the introduction of removable systems there has been more focus on fin performance. Even with the convenience of being able to remove or change your fins, many surfers have stayed with the old tried glass on method, stating that it gives there boards more power and control.
There reason for this the secured base that allows the fin to flex through its foil and the energy developed through a turn is directed back though the bottom surface of the surfboard. With your back foot plant less than a few inches above this, the result is that the surfer feels More Power and More Control.