All works ok, aside from the aiming, and those two games are also listed on the act labs page as working with the guns, so I'm not sure what the issue is. I've got over 15 games that work perfectly with the guns, so I know its not the guns themselves, so perhaps it is just something with mame.
Not really overly concerned about them, have more then enough to play with, just figured I'd see if it was something simple I was missing.