Originally Posted by RigglePLC
You might try one of those spreaders that is designed to also spread rock salt. They usually have one big hole instead of 3 small holes.
That's pretty much what Daner posted the link to up top. It converts from a BIG hole to smaller holes judging from the description.
For small scale areas wouldn't one of the expanded metal, drum style spreaders work? And then for large areas I'd say a conveyored topdresser though I've never seen one used for compost.
That dried compost pellets just looks like organic matter to me. I wouldn't go so far as to call it compost. Do they offer any test results on that stuff?