I used the WM brand of pine pellets. I think it's called Special Kitty. I wasn't impressed with it just because it gets tracked all over. The shavings at WM for small animals is the same as I use. Sorry for the confusion. I was in a hurry when I typed that. I should know better.
I am going to try the other pellets in here to see if they get tracked. Growler says they don't so I will try them. I don't know how the kitties will react to the shavings in the house. Also, seeing as I am adopting the babies to my kids I don't want to get too far away from the actual litter shape. I don't want them refusing to use the litter at my kids. I would never hear the end of it.
I can't convince them to change to pine yet. But I am working on it!
I think any kind of pine or shavings anything is a better option than clay litter if it is better for the environment.