Draft is a park board right? Then if you're dead fricken set on Burton bindings, I'd go for Cartels or Malavitas. If you want Customs, try to get the Restricted version with the Re:Flex disc.
Ya the Draft is probably Arbor's softest flexing park board. I wouldn't get Cartels with the Draft, they'll be a little stiff. Possibly the Malavitas but they're still not a designated park binding. I still say the Raidens are one of the best choices for a pure park binding that can handle most other runs effectively as well. Also, it's by far the best binding for your style for the price on Evo.com if that's where you're primarily looking to purchase the bindings.