If you look at your coil ears and they are bending in.
Or if you loosen the nut so it is LOOSE and you can wiggle the coil you may think about doing this.
Take a common one gallon plastic milk Jug and make spacer the size as the rubber washers in the arm head ( they can pop out.
Now place the spacers behind each washer and lightly coat them with either dialectic grease or vaseline (easier to get shaft between the ears.
My side play went away and the coil dose not have to be tightened so tight.h
Doug
Or if you loosen the nut so it is LOOSE and you can wiggle the coil you may think about doing this.
Take a common one gallon plastic milk Jug and make spacer the size as the rubber washers in the arm head ( they can pop out.
Now place the spacers behind each washer and lightly coat them with either dialectic grease or vaseline (easier to get shaft between the ears.
My side play went away and the coil dose not have to be tightened so tight.h
Doug