Update:
The crown decreases for the size M are different than for the L. The beginning/end of the round moves, and the last stitch of the round consumes the first stitch of the previous round. Take out the beginning/end of round marker and follow as written, and the decreases should work out just fine.

January 2012:
This pattern has been updated to include tested size M.
If you have the older version please download the new one!
If you have any questions/comments/problems with the pattern please message me.