Just replaced my MP3 version of the Jersey Devil show (thanks for the upload JerseyDevil).
Listening to Prove It and I'm reminded of the absolute best part of the solo intro, so melodic and so sweet. It's from 4:13 to 4:28.
I remember I really fell in love with this part of the intro when I saw it all those years ago on the Glory Days doco... 
As far as I've heard he hasn't hit this sweet part during the recent performances of Prove It '78. Disappointing. It really was the part of the solo that he seemed, with every note before that, to be working towards those wonderful melodic notes. Well, for me anyway.
I actually remember him doing this part in one of the performances during the River tour, but during the outro solo, can't remember which show though. That was a surprise!
The other standout part for me of those performances back in '78 was Danny's bit just before the outro solo. It's at 8:46 to 9:00.
Love it. Also loved seeing footage from the era of Bruce going over to Danny and them rocking out together during that part. Absolutely wonderful.