Dig Through Time revealing 8 cards
I believe the policy for fixing L@EC is not well suited to deal with this cases, like Dig Through Time, Anticipate, Ponder and other effects that let only one player look at a bunch of cards. That's because the current fix of randomizing the viewed cards that should not be seen is “impossible” due to the fact that there are another cards in his hands at the moment that the opponent doesn't know the identity of.
The “remove a random card for each card seen that shouldn't have seen and shuffle” might seen the obvious fix, but there's a big problem in here. Let's say the player desperatly needs to find a land in his Dig Through Time and finds none, then he picks and 8th card hopping for a land, finds it, calls a judge and knowing the fix now has a chance of 1/8 to keep a land that he shouldn't have. That seens like a good price, a warning for a land. We all know that it's cheating, but we all know that it's really hard to unveil intent in this situation.
A full backup is even worse as you can imagine, because we would give a full new set of cards to be chosen.
I believe that two solutions could be discussed to maybe be added to the IPG as fixes to the specific case of L@EC where only one player has the opportunity to look at a bunch of cards and adds even more cards to that group of cards.
1st - the harsher approach would be to upgrade to GL in the same line we use for GRVs in which the opponent didn't have the opportunity to check the legality of the chosen card that was putted in the hand.
2nd - the softer, and more appropriatein my opinion, we randomly take the amount of cards seen in excess +1 and shuffle into the unknown portion of the deck, following the line we use in IDaSoG.