firm feel idler

I'm curious where this has gone in the past few months.

Has anybody else tried this or do we have some results? I've worn out a couple idler arms up at the bushing at the K-member. They develop rocking slop that moves the end of the idler arm up and down so that the center link can travel up and down enough to allow the right front wheel to slightly turn independantly from the rest of the steering. This seems like it would prevent that wear on the pivot.