09 jo pro's vs hammer 21's?

[joe6969]

looking to get a new park ski and was wondering if anyone had used them and what people thought.
hammer 21's:http://global.skipass.com/gearguide/ski/2009/hammer/twentyone-1.html
jo pro's:http://www.freeskier.com/buyersGuide/product.php?product_id=337
thanks Joe

 

[joe6969]

so any1 had any problems with there jo pros, what do they ski like, they look pretty thin so are they ok on rails?