For those running and playing in a Kessel Run event next weekend make sure you have some way of checking your opponent's damage deck. Each person is required to bring a standard damage deck. I know most people have been buying multiple core sets and may have mixed their damage decks. You can not use this in official games. A player could also pick the most favorable damage cards (crit hit wise) for the team they are running and this too is not legal.
Each player is required to bring their own (unmodified) damage deck, as it comes with the core set.
I believe the organizers at my venue have a printout of each card from the deck on paper and each player is required to match up the cards from their deck to the checklist at the beginning of the tournament. This seems like the best way to handle this.