He really wowed people the public with his singing performance in Kin é bougé, which merited him chanteur de l'année in '91. For that album, though some Wenge originals will not publicly admit today, Makaba had complete artistic control, which is why acoustic and vocal attention to detail has been largely unrivaled since that album.
He changed from leader charismatique to souverain/bin adam/moto pamba, now bafanya erreur following his very active (FDL, TH & big concerts) success years. Early on in his solo career, he was eager to pour his heart out and sing/perform to his highest capabilities.
Another turning point was after Bercy, when he reached the pinnacle of commercial success. From then on, his motivation began to decrease since he had built a strong comfort level in regards to wealthy friends, a tight knit BCBG and staff, and an, overall, very loyal fanbase.
I used to hear from a friend over and over that TH could've been even better if Makaba had a hand in the making. He would compare it to Amelia Lias' and Dindo's (RIP) superb albums from that year, which were both arranged by Makaba. Nevertheless, TH remains one of the best solo albums.