Anyone have experience with a compost tumbler? I was wondering how good they are at mixing and if using it to mix soil would be a good idea. I have alot of soil to mix and I thought instead of mixing it with a shovel and rake and tarp like last time, I could just spin the compost tumbler a bunch of times and hopefully it will come out thoroughly mixed. Other people have said they used cement mixers and it mixed well so I'm thinking a compost tumbler could do just as good. Any thoughts or opinions or has anyone tried this?