Oh, and most polys are only poly on the front paws. It's not common to be poly on all 4 paws.

And thanks for pointing me to the pet forum. Because of Witt's question, I started checking around the internet and discovered what Chewie's paw problem is!

They call it 'horned toes' or horned claws. Whichever, I found the name for the pathetic ugly and strange toe-type-claws that curve around and cause him discomfort on 2 paws.