I know I've banged on this multiple times, but the current system causes differentials in starting character xp totals.
Which is entirely meaningless, as you can't really "game the system". You choose one of the packages, then you choose how much the stuff in the package would have cost you if you didn't have it already . This isn't the same problem as with WW games.
Also, perfect mathematical balance is a red herring anyway, as it's impossible to ascribe objective numeric values to various traits in a roleplaying game.