While trainer Mike Stidham isn't fully closing the door on a run in the GI Kentucky Derby for his pupil Proxy (Tapit), Saturday the colt will divert from the big-stage preps in an attempt for a confidence builder as he figures a prohibitive favorite in the GIII Stonestreet Lexington S. at Keeneland. A second-out graduate Nov. 26 at Fair Grounds, the Godolphin homebred repeated in an allowance there Dec. 19 before passing the class test with a good second in the GIII Lecomte S. Runner-up in the GII Risen Star...