I put a huge bucket of grass clippings in every time we cut the grass. The girl's love it and I have not had any problem with it molding . It doesn't last long enough for it to mold. My girl's eat it , scratch it , lay in it.
I have a new coop and as you, I read the great articles about DE.. I put it all over my 24 x12 coop . I do not have a lot of pine shavings down as I have been cleaning the coop every two weeks.
Then I read several articles about Deep Litter, I also have a neighbor who is well up in his 70's and...