Welcome to the Newschoolers forums! You may read the forums as a guest, however you must be a registered member to post. Register to become a member today!
patagonialukeVoile X9
RMU North Shore 2.0
Faction Candide 4.0
All offer a rocker-camber-rocker profile. North Shore is more directional. All of them would be a good amount lighter than the JJ's. I've also seen stuff about JJ Zero skis for next year which will be a lighter version of the ski but from what I've hear they will be very limited as far as availability goes.
KittenFactoryCarbon Pows are similar to a JJ with a longer turning radius and a full carbon layup. They also just went on sale this week.
http://kfskis.com/products/carbonpow
Also, just a heads up. You can't ride beasts with just a cast mod. Look into kingpins if you want to go that route.