What is the difference between the 2012 DeMarini Voodoo and the 2013 DeMarini Voodoo?
Not much. The 2012 and 2013 DeMarini Voodoo BBCOR bats are visually different, but the only actual difference is a slight change to the alloy in the barrel that is supposed to give the bat a little more durability.
The 2013 looks more Ed Hardy than the 2012. Both Voodoo BBCOR bats use the exact same TR3 FLO Composite in the handle of the bat. The barrel of the 2012 uses the SC4 Alloy, while the 2012 uses the new DX10 alloy. Both bats have the exact same balance and the exact same barrel size as one another.