Perry/Rolie, Perry/Cain, & Pineda/Cain Duets???

I've been reading a lot of old posts and there's a lot of debate over who was better Gregg Rolie or Jonathan Cain. While I looked up a bunch of Journey videos and found a bunch of Perry/Everybody vocal comparisons including Chalfant, Hugo, Augeri, and Arnel. I couldn't find a single Rolie/Cain comparison. Which is funny, because didn't Rolie pick Cain because he thought he would be able to play the piano, rhythm guitar, and sing his songs. But I can't find any Perry/Cain duets either. At least not on You Tube.
I did find this Pindea/Cain one.
https://www.youtube.com/watch?v=8PWCPQOpRnw
Did Journey just retire all the Rolie/Perry songs after "Escape"? Did Jonathan Cain ever sing any solo Gregg Rolie songs? Did they retire all the pre-Perry Journey songs after Escape? They had enough hits to play at that point. Could someone make a Rolie/Cain comparison? I think it would be great fun.
Here's JC singing "Don't Stop Believin'" solo in Nashville.
https://www.youtube.com/watch?v=esd0W3e6h34
I did find this Pindea/Cain one.
https://www.youtube.com/watch?v=8PWCPQOpRnw
Did Journey just retire all the Rolie/Perry songs after "Escape"? Did Jonathan Cain ever sing any solo Gregg Rolie songs? Did they retire all the pre-Perry Journey songs after Escape? They had enough hits to play at that point. Could someone make a Rolie/Cain comparison? I think it would be great fun.
Here's JC singing "Don't Stop Believin'" solo in Nashville.
https://www.youtube.com/watch?v=esd0W3e6h34