For those who use the litter maid type litter pans, what litter do you find
works best?

We started using "Scoop Away" brand and it seemed to work well - except that
Sabrina was licking the fur off her belly.  After talking with a friend who
said his cat did the same thing and they found it was the litter - and
switched from scoop away to Arm & Hammer, I took his advice and switched.
But what we are finding is that the A&H brand has too much clay, and when it
clumps, it sticks to the comb of the unit and jams the unit.  (really messy
to clean up too).    But she has stopped licking her fur off and its finally
growing back in.

But A&H just doesn't cut it with this machine.   ScoopAway causes a
reaction.   Just wondering what others have had success with in this regard?