There's no way Billy was for Young Guns, you can clearly hear Richie's voice/playing. That and the lyrics have nothing to do with Billy the Kid.

I wouldn't go by the documentary for dates, it's clear they're guessing. At one point Jon said Why aren't you dead was for Crush and it cuts to him saying it's for Faith. Gimme Some was indeed for Sex Sells, as the circulated demo shows. Do it to ya is a mystery to me. AXS clearly labelled it as KTF but a billion sites say Crush. Anyone know why?