Agree with @mijostyn a subtle improvement. If you are chasing the ultimate, worth trying, but you need to be sure the mod is reversible, or else you will devalue the arm. You have to be sure also that you do not disturb the bearings.
We use to remove the VTF spring from Rega RB300's back in the day - definitely audible reduction of "mechanical noise" for want of a better description.
Personally I am not a fan of anything that dampens arms/cartridges, you will get a better result with good matching of arm and cartridge and careful set up.
Any dampening tends to slug the sound.