I was wondering if anyone has tried the recycled paper substrate on their hissers? I bought some Fresh World Bedding made from recycled newspaper and magazines, it is color safe, non-toxic and phenol free with baking soda for superior odor control and high density for high absorbency. I am going to give it a try, if anyone know any reason why NOT to use it let me know! The pet store was out of my usual cypress.... they also had some paper substrate with mint, lavander and rose petals. I don't know if the odor would bug the bugs or not.