Ah. So the trick is to shred the leaves. We ran some tree trimmings (small stuff) through our grinder but it doesn't compost very well and makes for a messy looking garden. This year I will grind the leaves well and skip the woody stuff. I have two turning compost drums but truly they haven't composted a thing. I am pretty sure I am doing it wrong. I keep adding stuff when I should just leave them be to turn into compost.