CHE upper rear control arms
Apparently w/ the adjustable rear control arms you get a choice of a polyurethane bushing or a metal rod end. What would be the benefits of having the metal vs the poly? Am I going to experience a drastic increase in ride harshness, or can this be mitigated by putting rubber bushings in the rear end where the uppers mount? And at this point is there any benefit to using the metal ends?