I have the Eglu Cube with attached run and extension. It is covered in plastic. This keeps the rain and snow out and I am trying to use the deep litter method. When we have wet weather though the shavings feel damp. I am assuming this is simply coming from the earth. I was wondering if anyone has used the Dry Stall or Best Pine products to keep their bedding dry? They say it is permanent yet safe for composting?