A minor hijack, but, has anyone who skied the Firearrow EDT also spent some time on it's detuned brother the Firearrow Pro, and, be willing to comment on the differences? I demo'd the FA Pro for a few runs and was impressed with it's competence on firmer eastern snow.
@Living Proof if you mean this ski: http://2012.nordica.com/files/1280/FIRE_ARROW_80PRO_0A2042P5001.jpg
then I have indeed skied it a few days on January 2013 firm Sugarloaf ice (I was on the 2013 version in the longest size, 180-something with an ordinary demo shop tune). I too was impressed by its willingness to bite ice, given its width. And IMHO it's a very playful ski, ready to change turn shapes on the fly and snap back enjoyably from all sorts of carves. It's a wonderful ski, easy to bend, and much more reasonably priced than the FA84, and you'll likely have a lot of fun on it if you can get past the unbearably stupid paint job.
That said, the FA84 is a completely different ski from the 80 Pro. As far as I can tell, they share no DNA at all. They're united only by the fact that they both say Nordica on the topsheet. I think it was @Philpug who said a while ago that the graphics of the FA line are very explanatory. The FA80 Pro is a whimsical, lighthearted creature, and its goofy graphics reflect this. Conversely, the FA84 is a no-nonsense Darth Vader-esque ripping machine that takes no BS at all. The 80 Pro will forgive steering motions or weak counter, and it will bleed speed in a skid without complaint. But god help you if you consistently bring those eccentricities to the 84EDT; it finds your lack of faith disturbing.
Altogether, the 84EDT seems to me a crossbreed between a Mantra and a cheater GS ski. The 80 Pro didn't remind me of any ski at all; I don't have a reference point for it (and I mean that in a good way. It's IMHO a pretty unusual ski).