The law in question prohibits gun licensees from transporting their guns to other than specific places in New York City. I don't think this is part of the "Safe Act", unfortunately. I would love to see a conservative Court slap down magazine restrictions but that is not imminent.
"... do they even have a case for changing the number of judges on supreme court?"
The number of judges on the Supreme Court is purely a political matter and the knuckleheads filing the amici are doing exactly what the Supreme Court would not have them do.
I doubt that the brief in question is the most worthless that the Court has ever received. It would be fun if they included some response to it in their decision but I doubt that they would.
Dear Dims/Rats: STFU. You should all resign this afternoon and commit your selves to mental institutions. An alternative is to become homeless and fester in what you created. Have a Great day!