i think kits need meat daily , you will find a huge difference with the nipping if they fill there bellys with daily meat & just top up the dry food, my 4 kits can clean a rabbit over night
I am also a little uncomfortable with this trend of depriving an obligate carnivore daily fresh meat , meats not a treat its a neccesety imho but as you were following what the previous owner stipulated regarding diet , but i would give meat daily