Is it my imagination or is 2012 Topps Heritage cards just a tad thinner than the 2010 and 2011 Heritage cards.

Maybe it was just the cards I got but I put 50 cards side by side for each of the Heritage sets in the last three years and the pile for 2012 Heritage seems only comes up to 49 cards to the other years. This is not as obvious as the card stock change from the 2008 to 2009 Bowman sets. Beginning in 2009, Bowman went to a much thinner less sturdy card stock.