In Cristler v. Express Messenger Systems, Inc., ___ Cal.App.4th ___ (Jan. 23, 2009; pub. ord. Feb. 11, 2009), the Court of Appeal (Fourth Appellate District, Division One) declined to reverse an order denying the plaintiff's motion to amend the class definition post-certification because, as it turned out post-trial, the denial was neither prejudicial nor a miscarriage of justice. Slip op. at 8-12.