Ski Help

Hi,

Last weekend one of my friends fell pretty bad and tore his ACL as well as busting up his shoulder.  He's out for quite a while, so he gave me a pair of 2013 168 Majesty Rock N Rollas and a pair of 2013 175 Majesty Comics - both of which do not have bindings mounted.  Long story short, as of right now I'm only able to mount one of these skis.  What are the pros and cons of each? i.e. flexibility, landings, etc.  My home mountain has virtually no terrain park, but quite a few natural jumps and other "obstacles."  I know that these are primarily a park ski, but which would be the best for still throwing down tricks on natural terrain?  I'm trying to learn a flatground nosebutter 360, which is why I'm also interested in flex.  Personal experiance would be the most appreciated... I don't really understand the different charts etc that the companies use to advertise the skis different specifications. :/


Cheers