whenever i get the normal shotgun (haven't tried it with just the hunting), i can't switch to knife with the middle mouse no matter what i have in my hand at the moment. every other gun (aside from hunting as i only get that one usually with the normal one) doesn't do that. =/ it's annoying for me since i usually switch knife in emergencies and like my left hand free to manuever where i need to go.. if i gotta press #1 i can only escape through the right side as using my pinky to press it shifts my hand in an awkward way and using my ring leaves me with no left.