Yeah I kinda thought he meant extra as well, like if he dropped his scope or something he'd have another rifle at camp. Or I guess he could make the guide mule it around for him, though I'm not sure the guide would be up for it. I know if I paid money for a guided hunt and the guide shot my animal I would be PISSED!
As far as advice, not sure what to say. You have both, like both, they'll both kill stuff... use whichever one you want. I'd bring them both as well.