Join Date: Oct 2013
Location: Stuck in Ohio. Rockin it.
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I had the exact same question a while back. From what I can tell, on paper the boards have practically the same shape, twin flex with a bit of setback, and sintered bases. The only difference I can come up with is the the X is going to be substantially lighter and probably have more pop and rebound. That all gets chocked up to the core materials, the X seems to have a much higher quality core than the NAS, which also explains the price difference.