Yeah that's likely what I will end up doing. At the end of the day, 2 or 3 regular boxes is a million times better than scooping 8 clumping litter boxes! They will use the boxes that are mixed, but as soon as the box gets heavy on the pellet side, I'll find poop next to the box. And it is only a few of the cats because most of the breeze boxes do have poop in them. Some of mine are so finicky lol. It is a really slow process that's for sure. But I'd say it's still worth it. So much less scooping, no odor, and way less tracking!