Something to think about....
A singers voice is just one ingredient in a song.
It's no different than a guitar, drum or any other instrument.
Technically...it doesn't matter if the guitar or drum playing is
perfect...or technically correct.....same with vocals....
it's all about the final sound...the song.
I don't think anyone (not even Mick) will claim that he's
a top-notch singer (technically) but he has a unique voice
which is great for rock & roll (& reggae IMO). His voice (obviously)
adds a GREAT DEAL to Stones' music and vice versa. It's a magical
combination.
If you are strictly comparing studio recordings of Mick's singing to
his live performances...........why bother? I don't want live shows
to sound just like the record anyway.
If you went to see a great painter recreate a masterpiece....and
his brush-stroke wasn't exactly like the original...would you get
upset?
IORR............but I like it!