I am attaching two charts (both in MS Word and PDF) that I created regarding Sabbatical cycles. 

I hope some may find them beneficial. 

John, please post a both a word doc link and a PDF link. Thank you.
  

Kevin

The Seven Year Sabbatical Cycle.pdf

The Sabbatical Cycles of the Time of Jacob's Trouble.pdf

The Seven Year Sabbatical Cycle.doc

The Sabbatical Cycles of the Time of Jacob's Trouble.doc