April 4th, 2012 at 10:06:57 AM permalink
It's common to verify the deck and change the cards after a jackpot. However, I've never seen this done on a sub-300 to 1 jackpot. Casino employees all the way up to the management level can be very superstitious; it mostly depends on the casino's culture. There are plenty of stories of casinos changing out "hot" dealers when a player is winning *facepalm*. At least it's becoming less common.