Although the waist width of the Grizzly may make it seem like it is a ski that would overlap with your JJ's it certainly is not. Even though the Grizzly is a 90mm ski the bias of it is much towards an on-trail ski then off piste, something that you could refer to as a giant carver. Secondly neither the Grizzly or the AC30 are something that I would consider great options for bump, yes they have the ability to rip but through the bumps there are better tools out there for you.
There are a couple skis that I would recommend you to check out though that certainly have the ability to ski bumps better and still rip well too. The Salomon Fury and the Dynastar Legend 8000 would both be great options.