Spherical Control Arm Bushings

What do you guys think of them. I am going to have solid upper and lower control arms and know that all poly bushings can lead to binding. I was considering either the sperical bushings or rubber for the upper control arm to torque box connections.

What do you guys think of the performance of either. And how about additional noise or harness from the sperical's. Thanks.
- Justin
 
Sphericals do transmit more noise than poly bushings, but they are much better IMO. They will allow the control arm to rotate and not bind, but they will also dramatically reduce the forward-back motion of the control arm since it won't compress like a poly one would. Just make sure you get a HIGH quality spherical bushing (like the Qa1 ones) and they should stay quiet and work well for a long time. The cheaper brands use inferior teflon linings that can break and become very noisey in a short amount of time.