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The 07's have the new edge reinforcements and are a little wider all around underfoot. They also seem to be a bit more shaped. Plus, the new graphics are soo dope! Pink Floyd style with old school airplane looking bases.
cracks in the edges don't mean anything, that means they're fine, especially if you ski park a decent amount, all edges crack, i haven't seen a ski that doesn't (armada cracks pretty easily, chronics have the best edges i've seen). so as long as there are no edge blowouts you're dandy.