But the phrase "Pre-Cap" reminds me of this great Cap flashback scene.(Damned if I rememeber what issue or series it was from.) He's meeting FDR for the time and he's really nervous. He tells the President that he hopes he live up to being Captain America. (he's already becoming a legend)
FDR then said something that stuck to me about Steve Rogers. He reveals that he has a file/profile of Steve before Project: Rebirth. He talks about how brave and decent he was and there's this great line. "You were Captain America long before they injected you with that serum."
That's why I don't think there ever was a Pre-Cap!Steve. ;)