Prep, Prep, Prep!!!!
All protectants will show poor prep. Some just hide this requirement better. When I used Zaino I applied over 70+ coats of Z5 and Z2 ( car ( garage queen) washed maybe 3 times during this period). Conclusion: Zaino was not the problem. My excitement to apply it lead me to short-cut the prep stages and the Dawn wash removed any "make-up" that was hiding the true condition of my finish. If you prep meticulously and remove as many surface imperfect that is within your skill and tools the Zaino system will look great. This is essential for all protectants but more so for Zaino. I also believe a proper prep will lead to a better initial gloss and especially depth of finish. All leading to not only a shiny vehicle but also a rich, wet, swimming pools deep appearing paint. :wavey