Subsonics with Grado & Rega Arm

Would a phono stage with subsonic filter help?
Grado dance and woofer pump when used on an old Thornes. I dont think Grados like suspension turntables. No dance on rega table but hum increases nearer to motor. I think Grado on Rega is very musical regardless of how the numbers crunch out.

A tonearm rewire would probably remedy this situation. A typical 3 wire set up is required for a Grado. Without a dedicated ground wire problems like those posted happen.

Rega and Grado don't like each other.....heard of these problems with this combo before.