Bump! (I know the mods dont approve of bumping, but I think you would approve of double threading the same question as well, so i apologize lol)
I was letting you know this all now so maybe you can change the card search to a 4 digit system, before more set 20 need to be entered in it. Either that or the 'Sort by Card Number' option becomes pointless.
I personally think the 'Sort by Card Number' option was extremely useful.