I can't tell if you're aware, but the Blacklist is just the midwide version of the Westmark. Arbor decided instead of having a different name, to just call the Blacklist the mid-wide Westmark. It's the exact same board for 2015, you might as well pick up a 2014 Blacklist at a discount if you can find any in the size you want.
If you want a blacklist, I'm not sure why Arbor's name change, changes what you want. Get the blacklist or the Westmark mid wide, they're the same board