Everything looks good when it's new. I hate to break it to you guys but bushings wear out. I seriously doubt that the material composition that you used for the new bushings is that different from the off the self bushings that you can buy. Bronze bushings don't work that well for limited rotation applications, they work best for spinning shafts. In the steering system they receive wear in the same spot over and over in an area that is receiving a huge load.

I'm sure that Calmini has the capabilty to build an idler arm that is supported by bearings that would be much more stout but it would be $$$. We all know that everyone would bitch about that.

If your new bushings work that's great but I wouldn't hold my breath.