I don't follow the feeding calculators at all. The little cup that comes in the ZP back, I usually feed 3/4 scoop in the morning, 3/4 scoop at night. She doesn't gobble it all up right away and she's not overweight at all. She's been holding steady at 6.1 lbs since August. I mentioned it to her vet and they said she's totally healthy. I think that if I did follow the ZP calculator, I'd be under feeding for her. She's also very active with walking, running, and chasing the cat

Her poops aren't huge, but they're not small, usually 1-2 times a day. Sorry I'm not much help. I can only give you the info on what I've experienced with Miya. When you increased her ZP, did she eat it in one sitting or does she pick at it throughout the day?
It is weird that Chloe is pooping 4-5 times a day though..hmmm. So you're just feeding ZP and an occasional raw, excluding the few bites of turkey over the weekend?