Replying to Assasins vs. Mad Trix?

So originally I was thinking about getting the black/white Mad Trix cause I can find em for cheap. The recent deals though on here about the Assasins made me think. I want them for mostly all mtn stuff, with just a bit of park ability. Couple specifics:
What's the difference between the Assasin and the MTX Pro? (how they ski, I know about the fiber vs. metal thing)
How much of a tail do the Assasins have?
Which would you recommend for something like 70% all mtn with 30% park or so? (Assasin, Assasin MTX Pro, or Mad Trix)

'180 net grab = NOT a new trick!'

Have you ever seen a little kid slide back down the inrun of a kicker without going over? This is why parents shouldn't dump their kids off anywhere near the park...