I ran Gaz Golds on my TVR for a while, these coil overs used Rose Joints (spherical bearings).
I found they gave a crashy ride and ultimately had a very short life, I switched back to Bilsteins that used rubber bushes and never looked back.
In my experience, Rose Joints (spherical bearings) really have no place on a road car.
Track car yes, road car no, rubber is still best which is why the OEMs still use it.
