Instead of creating ANOTHER new post about polyurethane bushings, I might as well just add to this thread:

Is there any information out there on the shore hardness of the various poly bushings the vendors supply? I've done a lot of research on poly bushing in general and it seems like most auto clubs/forms tend to geek out over the technical specs of aftermarket bushings but the only info I have been able to find on the DMC forums is they are stiffer than stock rubber.