Sorry Mercen-X,
When you said this
"What're you talking about? You're young ain't ya?"
There's more, but I can't get it right. <--- I assumed it may not be exact words.
I just checked just now, and Cid does say something remotely the same.
Cid: Huh? What the hell're you sayin'? You're still young, and you give
up that easily?
Plus, I haven't seen any of Zack's flashbacks. So sorry.
And no you're all wrong lol.