You Have a Point There
A curious game, Deuce-to-Seven Lowball (No-Limit). With some curious rules. One of those rules (followed yesterday) dictates that if a card is exposed during the deal and it happens to be a "wheel" card -- i.e., 
, 
, 
, 
, or 
-- the player keeps the card. If not a "wheel" card, the exposed card would be replaced with a new one.
Here at the start of play today one table began debating the merits of the rule. It was pointed out that a player could perhaps manipulate one's hand so as to expose non-wheel cards as the deal was being completed, thereby ensuring a replacement for the unwanted cards.
After a bit of discussion, it was just announced that from this point forward, all cards exposed during the deal would be replaced, regardless of what they are.