Utah recently expanded the membership of its Supreme Court from 5 to 7 Justices. My understanding is that this was done because the Legislature was unhappy about that Court’s recent decisions on gerrymandering.
It’s an interesting experiment. If it turns out fine, that would undercut the criticism of Court-packing at the federal level. (I’m not sure what fine means, but anyway.) Will the Court’s decisions with respect to gerrymandering change? Probably, if only because there is the possibility that if they don’t, Utah could go to 9 Justices or 11.