I'm also looking at boards (Heritage and Cobra, amongst others) and I emailed the guys at NS. They were very responsive (replied within an hour or so) and were very helpful at narrowing things down. You can always try that route if you are pretty sold on NS...
I'm not exactly a "charger", but I'm never in the park and don't ride switch (unless in a sticky situation). Lots of groomers and glades...trying to find a more pow friendly board myself. Sounded like the Heritage and Cobra were better fits for me (the NS guys suggested the Cobra for the heavier snow up in the Cascades vs. the guy at the local shop suggested the Heritage since it is true directional and not that much more stiff than the Cobra).