I did the Sogi mod awhile back, but never got the change to replace my shifter bushing itself. The Sogi mod felt great, don't get me wrong, but it was lacking the new bushing feel. I received my green truck bushing in the mail from "TRACKMKIII" yesterday (thanks alot man for the hookup). I just put it on and after driving it around, I must say that my 260k mile W58 feels BRAND NEW! The gears shift through like silk, it's truly amazing. I also put in Synchromesh tranny fluid recently as well, so that might be apart of it as well. But if you're looking to do the Sogi mod, get the green truck bushing first, it's only about $10, and it's definently worth it.
-Matt
-Matt