Thanks for all the feedback guys, from this can I take it that all these so called 'professional preperations' are not worth the money or just this one? My last A4 suffered a bit from stone chips and hence my interest as anything that will provide added protection to my new pride and joy.

What did not help of course was following a low loader which had not been cleaned and so was throwing all kinds of stuff at me whilst at the same time, I could not get out of the way so stones were just bouncing off my bonet!

ahhhh