Here's the verdict:
1. Tabs took to Cat's Pride instantly, so I suspect that's the cat litter her former home must have used. But she only pees in it, not poo. For poo, she still uses the mixed Ever Clean and paper-litter.
2. I have mixed the paper-litter in to every one of my Ever Clean litter boxes now. They all use it. I'm adding more paper litter each day.
I had a discussion with Dr Susanna over the subject of litter the other day and she says she has not had any problems with clumping litter for 18 years now. No illness whatsoever, associated with clumping litter has happened to her cats or tiny infant kittens that she fostered. She also mentioned that if there was any harm in clumping, the Americans would have sued the companies bigtime.
Then, I had a chat with Andy over this. Andy and Emily have been to the factory in China where they produce clumping litter and they were told by the manufacturers that it is only clay and no chemicals are used. In fact, there are a few locations in China where this clumping clay can be found naturally, and China actually supplies the clay to the other US or Canadian-based companies that produces clumping litter. In fact, these companies have also OEM-ed their factories to China. So, apparently, there is no chemical. It's just natural clay. Another friend also told me that.
Dr Susanna also said that cats like sand, naturally. That's true.
But paper is environmental friendly, and I do like that too.
Clumping litter has its advantages in that you get to scoop up the clump (all of it) and clear off the poo and pee completely from the box, keeping it as clean as you can.
In this one week, I must say Cat's Pride has great odour control. However, it doesn't clump, so i end up scooping and throwing more than is necessary. I've already finished the pack and it's only for Tabs alone. I did spot Cow and Tiger using it, too.
The mixed paper-litter and Ever Clean is getting along fine, too. I don't know if I would eventually switch entirely to paper-litter - that would depend on my brood. Mixing is also a good option, for now.
Another great idea is to place Ever Clean at the bottom and paper-litter on top. That way, the cats would only be digging the paper and the urine seeps down to be absorbed by the Ever Clean which clumps it up. Then, we scoop up the clumped litter! That's Cathy's idea. I did that, but the paper and Ever Clean got mixed up in no time!!
This litter-box contains the most paper-litter and Tiger used it last night.
Bunny uses it, too.
I clean the boxes at least 3 times a day on a work-day and maybe 5 times a day on weekends.