WIGGS, Great suggestion by Dave regarding a contestants height on his NPC/IFBB card.
My only question is "When does that contestant's true height get "printed" on his card?.
Cards are usually issued by mail, so an additional or new card would have to be printed and issued at an official contest weigh-in and verified by an official and agreed to by the contestant.
I'm wondering if that would work or merely cause additional problems?
But the biggest problem as you mentioned earlier is the long delay backstage before the contenders are called on stage.
I'm sure that they are working on that problem but it has been somewhat of a problem for as long back as I can remember in big events and may be near impossible to fix.