The past days have shown that this unit has an important speed advantage on all others daggerboard
This was one of the question. Would David Raison be able to reinvent classic design IMOCA to make a breakthrough in performance ?

Driven by an experienced racer, the answer seems to be yes, this boat is a rocket, we see Conrad unable to match race this boat.

The conclusion is that there was in fact only one daggerboard able to gamble and win the eastern option, the boat of Jean (but also Eric belion who runs a sistership, but Eric is not in same calss ojf navigator, he is more an adventurer). For Conrad we will see later, but even if he wins, this will be a little;

So this explains why no other daggerbpards chose the eastern option, siimply because now with routing software, you enter the specifications of your machine, its speed limit, and you can check each options, and for an older daggerbord with a lower speed routting prediction showed probably this was a risky option.
It was known since long time that under "cap verde" it would be required to go back to the west due to front wind on the eastern,

We must also remind the context. Jean did not make a wonderfull start, and it seems that his boat perform awfully in very light conditions, so he had a serious gap with the head of the flieet, so this was the right moment to gamble. But contrary to Conrad, Jean with a faster boat had a "securiy'" margin to win..