1 year for the big green shag I cut last winter. It was right at 20% when I split it, and I don't know exactly where it is at mc wise now, but it definitely didnt gain any moisture after stacking it and it burns great.
That sounds ugly! I certainly didn't have the warm and fuzzies when I dropped this one! But I knew what I was dealing with and took the necessary care the job required. All well that ends well!