Courts “should generally leave a previous decision undisturbed absent a showing that it either represented clear error or would work a manifest injustice.” Hydranautics v. FilmTec Corp., 306 F.Supp.2d 958, 968 (S.D. Cal. 2003) (citing Christianson v. Colt Indus. Operating Corp., 486 U.S. 800, 817 (1988)). Whether to grant or deny a motion for reconsideration is in the “sound discretion” of the district court.