Suspension bushes

Anybody fitted polybush kits to their P38? How harsh did it make the suspension when compared to standard?

I did but didn't like the ride so changed back to rubber. Its not harsh as such, just a little more jittery whereas rubber is more forgiving on poor surfaces and thus smoother. Or it could just be my imagination. On the positive side handling did perhaps improve the tiniest bit at fast A road / motorway speeds. So its your choice.