I agree ...
Go with Armada's mark as the ski has a very short area of sidecut
If u search the forums from last year u will find a lot of talk for 2009 JJ's - don't know about 2010 being different - Quote below
Thanks for the email and most importantly thanks for picking up some JJs this season. I can 100% guarantee you made a good selection and you will not be disappointed. If you’ve never skied fat rocker technology, you’ll wonder where these skis have been during your epic pow days of the past. I get stoked just talking about the JJ and ARG; both skis literally change the way you will ski pow, and better yet you’ll be able to ski longer as this technology relieves a lot of the effort during the deep days. Without going on and on about the skis, let me get to your questions. Our factory recommended mount point on the JJ is -5cm from center; this point should be indicated on the ski by a line. To get the most accurate measurement I would recommend measuring 82.5cm up from the tail and mark your midsole there. At this point you will maximize the effective sidecut underboot. Give that the sidecut is very compact on the JJ it is best to get everything you can out of the sidecut, and subsequent turn radius. Anthony, JP and Julien use our factory recommended line; however, Tanner and Jakob both mount at -3cm from center because they ski and land switch quite often. If you don’t plan on running the switch landing/skiing program too often definitely mount at the factory recommended line. Hope this helps you out. If you have any further questions please let me know. Thanks again and enjoy the winter.
Tyson Hall Armada Skis Inc