CMRF8SF, it's always that last metal: 4-1-3

130nm 8RF DM is 4thin-1thick-3rf (M1-M4,MQ,LY,E1,MA)
No one ever spells out the metal order in the design manuals.
My SKILL scrips had an error, which is now fixed, but you'd think that it'd be easier to find metal stacks.