Ok I am going to break down and place an order with Zaino. I am a bit confused about the application procedure. I am clear about washing with Dawn, clay barring if necessary etc. However on the Zaino website it say to apply Z1 or ZFX first. Is this true? I see others washing then using Z2 or Z5 first. I have a redrock pearl Pilot and a black Subaru that is going to need some work. What should I buy? Yes I have read the Zaino thread, please help.