Arm & Hammer does ok, but i think tidy cats does better - that's why i switched. i haven't found that the little pieces cause that much odor - i just scoop them when i get home w/a handheld scooper.I like tidy cat, but really can't stand that it leaves those tiny fragments behind. That is what smells so bad. As for Arm and Hammer do you think it woud clump tight enough to use in my litter maid?