Why should Jon watch out for the jungle noises? It's not like they're very hard to do (or damaging, for that matter). As long as he doesn't try to bring back THIS, everything should be fine:

https://youtu.be/8rPLEAFOF_E?t=4m48s

Which sucks, because that particular performance of KTF and the one from Anaheim 2003 are my favorite performances of that song EVER. It's just fierce!

I actually think Jon could still do that scream (at least from time to time), but now that his overall voice is shot, he probably wouldn't be able to get a single note out of his mouth for the next 5-10 minutes afterwards... and I'm sure he doesn't want to experience that! :D

best LYHOM in a Long Long time

Because I have a feeling that the screams will go longer or even much intense as the tour progresses. Just my speculation though if you'll ever find this crazy

due to Jons vocals "VEGAS" is clearly a Level up !!!

He definitely shouldn't do KTF the way he did it in Anaheim.

The screams he did in KTF Vegas 2018 aren't really damaging at all. (Pure Head voice function instead of chest.)

There's a reason why he hasn't done a scream for years. And I just feel that Jon should always remember that reason whatever it is

Yes he should be careful.