I looked at my decks and couldn't see a difference. Then I pulled out the 4 cards used in the example given earlier in the thread (9cQhKd3s). I put these 4 cards on the table and I could reliably (5 times out of 5) pick the lighter cards. I showed the 4 cards to my wife without telling her what...
Can confirm. :)
EDIT: Found a pic from when I first had mine framed (2011)
Desjgn uncut sheet - framed by image posted Dec 15, 2016 at 8:37 AM
Thanks for keeping the prices good through December. I'll be ordering a few setups after Christmas!