Rake
Depending on the size of the mast, a rake is applied to boost your performance. On the 78 cm, a negative rake of 1° is applied. This rake allows you to raise the nose of the board slightly. This brings a stronger support on the front foot in flight and therefore more dynamism (downwind program, surf foil).
The 85 cm mast is neutral and therefore versatile for foiling.
The 97 and 107 cm masts have a positive rake to move the center of gravity back for a freerace, race program.