I tend to overthink things sometimes so I wanted your opinion on this food regimen.Cats: 2 Main Coon Kittens (5 months) and 1 Senior Main Coon (suffers from IBD).Dietry: Purina Select One (Kibble), 1 1/2 cups/day (I hate feeding dry but the breeder stated kittens need food to be available all day long).Canned: 1 can of Nature's Variety Instinct (1/2 can twice a day) + 1/4 can in evening for the Sr. Main Coon (He likes the lamb).Raw: One of the kittens like the Nature's Variety Raw Duck so I would give him ~ 1/4 cup in the afternoon instead of his canned. This morning I gave him 1 medallion size chunk which is about same portion size af the raw bites. He ate most of it and then threw up.Feeding Results: The AM feeding of canned is for the most part left alone. I don't know if the summer heat is causing them to ignore most of it. The PM feeding is gone when I get up in the morning. All of the AM Dry is gone. I will usually re-fill later in the evening (9 pm ish) night.The kittens are ~8 lbs and so is the senior cat.Question: Do I have to continue to free feed the kittens the dry? If so, should I only do it for the first part of the day?What would you change?