rear ctrl arms, spherical or poly, adjustable or not?????

So MM made the same mistake and is using them too? Anyone have any sources for this info?

One other question. If you have a bushing other than the spherical at one end of the control arm, how exactly is it able to transmit the same road noise to the car? I mean... there is at least ONE bushing that should be dampening that transfer.

Wait... thought of another question:

If you're running a panhard bar, what type of bushing would be best to install? Softer? Harder?