[Rdkopper]

The short answer...

I think Jon's voice is damaged beyond return. He's developing new ways and techniques to maximize what he's got left. Different ways of hitting notes, getting through longer verses, etc... This could be the effect of bad technique from the past 35 years, smoking, just a natural regression, or all the above but the bottom line is, it's permanent.

Some people want nothing to do with it while others find and embrace the good moments... It's unfortunate for bootleg collectors especially with today's technology but there are still other things to enjoy at a Bon Jovi concert besides Jon's voice not being perfect... I think that These Days performance from Sao Paulo is a perfect example of that.