Choulay left because of the trip to Cabinda. After having performed in Point Noire, they started the recordings of Force d'Intervention Rapide and they received a contract for Cabinda during the recordings. The way they went to Cabinda wasn't pleasing all musicians especially Choulay who came from Europe. They went in a truck with pigs, chickens and goats from Kinshasa to Cabinda, back in those days the road of Kinshasa to Matadi was really bad, let alone the one of Matadi to Boma, the one that brings you from Boma to Muanda/Banana and the boarder of Cabinda being of sand (when it rains you do 4 days to get there).
When Maison Mere returned to Kinshasa, Choulay went to Manda Tchebwa announcing his departure from Maison Mere, calling Wenge Maison Mere a faux orchestre, that travels with animals and other stuff (I forgot it since that it's more than 20 years ago). Shortly after it they deleted the few vocals he had in Force d'Intervention Rapide giving it to other musicians. Back in those days Choulay wasn't really believing anymore that Maison Mere would get the fame, that they it got after Force d'Intervention Rapide. Because back in those days the had alot of mpiaka in those public concerts they were giving in the areas of Kinshasa, teaming up sometimes with Marie Paul to get some public.
During the same trip to Cabinda Werrason did 12 on Masela, using Adolphe (many people say that Werrason was manipulating Adolphe to do some dirty jobs on Masela, but Adolphe still deny it until this day). I forgot a big part of the story, I remember that Werrason had to go along with Didier Masela on a jet or helicopter to Cabinda, but Werrason went without him with Masela ending up to get in that truck with those animals (he was very pissed off that day) along with Adolphe and the rest of Maison Mere. When they had came in Cabinda, Masela and Werrason argued about it like the way they did in Pointe Noire. From that moment the war between Werrason and Didier Masela really started. Christian Mabanga often refusing to give the bass-guitar to Didier Masela or if Masela had just played 2 songs, Christian would come agressively to him say that he had to hand the guitar to him and disrespect him. Didier Masela then also coming later then Werrason to concerts, to show Werrason that he was the real leader and founder of Wenge. (I guess you saw his entrance at Palais du Peuple, but just a part of the audience paying attention to him).