I've just combed Arthur and I think it's fairly safe to assume the comb is no long with us. 4 teeth snapped off!! I feel like now would be a great time to upgrade from plastic to metal, but I don't want anything with teeth too sharp to hurt, but sharp enough to get through is very thick undercoat. Anyone know of one that would fit the bill? Or I don't know if a slicker brush would be better? I already have a Zoom Groom.