I did use the granular PDZ yesterday. I only dust once a week, they were not clumpy to begin with so I don't know how well it worked. I'm just going to wait it out for a few weeks, if they stay fuzzy I'll assume it works...
Yea, I've been using the granular since I posted. I go through about a bag a month. It works great as a deodorizer/ammonia/dampness absorption so I throw in a whole cup per cage.