its not about the high notes mate its about the technique in which he used to sing an the strain it put on his throat,i think he may have had a warning from a doctor to ease up a little which has in effect taken abit of the power out of his voice which means hes still tryin to ound like he did but cant quite get it cos his stance has changed,you look man hes relaxed at the mic now whereas he used to have his neck completely upright,you try belting out all them songs like that,it kills!!