Only The Young - Live - Question

A question ive been wanting to ask for a while.
On the few live versions of OTY ive heard Perry sing, he nevers sings the high pinched part in the chorus. OTY is one of the very few Journey sonfs were i prefer the recorded version because of that. Never understood why he didnt do it, surely it isnt because his vocal abilities were not good enough, particually on the Houston tour.
And then when i saw JSS performing it with Journey, JSS sang/attempted to do the high parts of the songs (and all in all did a great job getting most of those notes)
Anyways, dont know if this is a question or a statement .. just wanted to mention it.
On the few live versions of OTY ive heard Perry sing, he nevers sings the high pinched part in the chorus. OTY is one of the very few Journey sonfs were i prefer the recorded version because of that. Never understood why he didnt do it, surely it isnt because his vocal abilities were not good enough, particually on the Houston tour.
And then when i saw JSS performing it with Journey, JSS sang/attempted to do the high parts of the songs (and all in all did a great job getting most of those notes)
Anyways, dont know if this is a question or a statement .. just wanted to mention it.