Precious Cat is clay based.
I ahve to say, since moving to somewhere with nice shiny, slippy laminate flooring, the tracking has got much worse. I have a huge covered tray with a flap and a mat in front. The biggest problem is that Dave kicks the litter out of the tray as he's stepping out
It then follows him round the flat
This happened when I used clumping clay too and I found the odour control wasn't a patch on Cat's Best so I'll just persevere.