I noticed that Race 13 is a pretty weak field for an allowance race except for Code West and Bluegrass Springs.
http://www.brisnet.com/php/bw_pdf_viewer.php?track=PIM&race=13&date=2013-05-18
If you feel strong about any horse in the Preakness, maybe a double singling one horse in the Preakness and Code West in Race 13 isn't such a bad idea.