Replying to Line Anthem/Chronics. I am thinking of getting these. Help lol

Ok well let me just say that I have been skiing for over 15 years, but these will be my first twin tips as i will be trying the art of freestyle skiing.

I went to a local ski shop, and the guys there said that the two skis i should get are either the Line Anthem or the Chronic. The package they put together was Those skis, with a Dibelo (sp?) boot, and Rossi Scratch bindings.

Are these good beginner twin tip skis? What are the specific advantages of each (The guy said that the Anthem was better for all mountain, which i thought the Chronic was for that)? And do they have a "Vertical Wall", which is something I have been told that i need?

Any other info or tips you guys have is greatly appreciated.