Before I applied my first coat of Zaino ( more than 60 coats ago) I prepped the finish with Mequiar's #9 and followed with #7 (glaze). No claying was necessary because this car is a garage queen that is rather driven. I washed with Dawn and then applied the Z1, Z2, etc. Maybe that is why I have a deep as carnuaba shine with the outstanding Zaino reflectivity. This is why I find it amazing that some people think that Zaino was no depth. Surface prep is essential for Zaino. I believe true color depthness is achieved prior to protectant application. This is especially important with dark colors.
for your observation stuart hicks
