he clearly does not rehearse and discipline himself enough,because even tutu was struggleing when he got back into the game after years of interruption,even at the wenge reunion,it was just enough but now that he plays week in week out with bcbg he hits it well despite the big belly,and as you said guys like cnn brigade you'd not even tell they are any different both physically and voice wise to their past in groups
and this is where he made a major mistake,he is lucky to be a constant top 10 15 name in people's discussions which are the "life" of our music between releases and so on but instead of exploiting that to work hard and maximise it,he just is content to not be forgotten in discussions,i know singers who say in private" soki nazalaki ata na audience ya celeo na net mais nakoma grand ya kosakana te" but himself seems to just take it easy and for granted