The jibe on a directional from heel-side to toe-side with footswap: prerequisites, kite handling, footswap and the mistakes that throw you off the board.
The honest answer first: the directional jibe changes direction on the surfboard so that you end up riding toe-side, and you have to swap feet for it because the board has a fixed nose and tail. Unlike a twin tip, front is not the same as back, which makes the jibe a skill of its own. In the IKO wave programme "jibe" and, later, "jibe strapless" are separate items [1]; the twin tip jibe itself is IKO Level 4.2 [2].
Why you want to learn it early: in waves you constantly change direction. IKO describes it like this: in side-on-shore wind you constantly move the kite from one side of the window to the other, in side-off-shore wind it stays mostly at 45 degrees and you only carve with the board [1]. If you cannot jibe, you stay on one lane.
I classify it as intermediate: it requires the twin tip jibe and toe-side on the directional, with a combination of kite handling, weight shift and footswap. This guide explains the principle and does not replace a coach.
Can you ride the directional in both directions, hold height and edge the board in control? IKO advises going back a step when in doubt [3]. Milestone: you ride 100 metres per side cleanly (practical benchmark).
Stand on the board on the beach and swap feet until it works without looking. Otherwise the footswap in the water becomes a stumble (practice). Milestone: you swap feet ten times without wobbling.
On flat water with little pull you do the swap in a straight ride. The kite stays calm (practice). Milestone: you swap feet while riding without the board sinking.
As in any turn: the kite moves first to the new side, the body follows. More on this in the transition skill (practice). Milestone: you lead the kite in the turn without flying it into the water.
You ride an arc, shift your weight, swap feet and rebuild edge and pull on the new side (practice). Milestone: one full jibe without the board sinking.
Repeat the jibe in both directions and vary radii. IKO advises beginning with the strong side but not neglecting the weak one [5]. Milestone: five jibes in a row, on both sides.
During the footswap you briefly stand without a firm connection. Foot injuries top the statistics: in a survey of 626 athletes the foot was the most common injury region [6]. In waves the board can also hit you [4].
Footswap and turn are two tasks at once. So plan plenty of space for each jibe, ride the arc too wide rather than too tight and abort if the footswap does not work instead of forcing it (practice). Keep two line lengths of distance downwind [7] and mind right of way: the first rider on the wave has priority [4]. This guide does not replace supervised training.
Practise the footswap barefoot on land with your eyes closed. If you can do the swap blind, you do not have to look in the water. Count aloud: "kite, weight, feet, edge". (practical experience)
Because a directional has a fixed direction of travel. After the turn your rear foot would have to be the front one. Your coach shows you the technique.
Whenever you change direction on a wave or in gusts. IKO describes that the kite path in wave riding depends on the direction the wind comes from [1].
It needs more balance because you orient yourself on the board without firm straps. I have no measurement on this.
One that gives good power with depower reserve and never overpowers you [4].
Yes. IKO sets the jibe at Level 4.2 [2] and calls it a waste of time to attempt a power jibe without the simple jibe [3]. The basic idea, kite first and body after, stays the same on the surfboard; only the footswap is added.
Cutback: From the Shoulder Back Into the Power of the Wave