Years ago, I read the New Natural Cat by Anitra Frazier. Since then, I follow her " rules " about feeding cats. The Clan is fed in the morning round. Round 1 goes down, they eat. Each cat has a placemat and each cat knows where they eat(the catsitter is amazed). One hour passes, they eat round 2(the food is divided between both rounds, years ago we had cats that ate so fast that they would just vomit right after they ate). After they finish, the dishes are picked up and washed. Only water is left out between meals. The same routine at supper. Our vet has always said that she has never seen lean felines as ours(trust me, I should be so lean!!!)!!! Barry and I make sure that there is no stealing of other cats food. That would be a violation of the third Campbell Cat Commandments: " Thou shalt not steal from the other cats at meal times." Since our cats are used to this routine, I think they do pretty good.
Good Luck with your cats!!!!!!!