9A traverse aller-retour

Kairn reports that Jean-Pierre Bouvier (55) has done the FA by Fou fire in Fontainebleau for which he suggest 9a trav. Left to right, it is 8B and Right to left it is 8C and aller-retour the suggestion is 9a. Last year he put up another aller-retour Le Voyage de Zhong Kui giving it 8C+/9A. It should be mentioned that the traverse grade is somewhat in between a route and a boulder in difficulty meaning that it could also be graded 8C+ or 9b suggesting that it is one of the Top-8 most difficult climbing challenges in the world. This remarkable and extreamely impressive ascent which also suggest that climbing is unique, based on his age, has not been published in the news since 8a consider this a constructed and contrieved climb. What do you think? (c) J.Chabert/Grimorama/Kairn