By the way, Force Fields were designed to work on many Rigid Bodies simultaneously.
Joints were designed to work on just one or two Rigid Bodies at a time, so maybe a joint is a better solution to your problem.
Below is another USDA file that uses a Distance Joint instead of a Force Field.
The Spring is Enabled and the Spring Stiffness is set to 100,000 and the Spring Damping is set to 1,000 to generate similar results.
(I’d like to mention that these files use a newer version of the Force Fields extension than what has been released. So the Linear settings may need to be set to higher values when you use it.)
SpringJoint.usd (4.7 KB)