As posted in the business section im soon to become a very proud Gtechniq pro detailer giving me access to of course the 9 year rated Crystal serum Ultra and its 10H hardness rating! now.... first things first it seems like a really finicky ceramic to actually apply which makes me slightly nervous but ill get used to it! Im going to throw it on my Z4M next Monday and see what i think..... anyone got any opinions on the CSU range?? or any questions you'd like me to get answered via Gtechniq as at the HQ this coming Friday.....