I don't know with only 9 times out... rental decks to a CX is a big leap. You are the only person who is able to honestly rate your ability, though. Everyone who is riding hard will occasionally take a fall.
I'm 6' and ~200lbs with a 12 boot. I bought my 2010 164W CX / 2010 Cartel EST into my third season riding (30ish days each winter), so I know that I liked traditional camber underfoot, and I wanted a stiff responsive board. It slays NE hardpack, carves like a razor (I keep it tuned to 1ļ/1ļ), cuts through late day chop, and rides well over scraped ice patches during night sessions. With 1-2" of additional setback, it'll do "ok" in denser pow, but your rear leg will still burn.
While it's definitely not "playful" (I'm beginning to dislike that term)
, the term "unforgiving" may be a little harsh. It is a very responsive board, and it rewards a driver who is deliberate and has good form. It will turn on a dime and let you lay over a carve inches off the slope. On the other hand, if you are sloppy on turn initiation or exits, don't understand dynamic riding or know how to load/unload your turns on the steeps, you may be in trouble, 'cause it'll catch an edge and slam the crap out of you if you are not on point. It *WILL* make you a better rider if you keep it.
That said, I snagged a 2012 162W and 2012 Cartels with that 25% off coupon at Sun And Ski Sports before they killed it for Burton gear. I love my 2010 and am sure I'll love the 2102 as well.
I say man up and ride it.
I can't speak to a NS comparison.