I'm not going to bitch too much ...

.
... but I can't see how there's not a circuit split over 'good cause':

A panel of the U.S. Court of Appeals for the 3rd Circuit upheld the law, saying the legislature’s decision was a “presumptively lawful, long-standing regulation and therefore does not burden conduct within the scope of the Second Amendment’s guarantee.”

The issue is still being debated in lower courts, however. 

Earlier this year, a panel of the U.S. Court of Appeals for the 9th Circuit in San Francisco said San Diego County had infringed on constitutional rights by the way it enforced California’s law requiring “good cause” to obtain a concealed-weapons permit.

 Isn't that one of the primary functions of SCOTUS? To resolve circuit splits? I suppose we'll just have to wait until we get the 'right' plaintiff.

pm