Yesterday, whilst servicing and washing the Zed, I noticed that the paint on the radiator ends was a little "bumpy". I'm not sure if it's always been like this, or if I've got some ally rot starting underneath the paint. The paint isn't broken anywhere, so if it is bubbling that would have to be a manufacturing defect. The warranty ran out in June :-( May I ask the Z750/1000 owners to fondle their radiator ends & report back on the bumpiness?