Zaino clay is fine. Just keep it lubed. Use their Z-7 carwash for lube, they give the instructions.
I am a Zaino whore to be sure. Z-7 is fantastic stuff.
2015 SO/SO MT M3 :: Exec : Lighting : Adaptive : HK : CF trim : Full leather : DAP : Black 19's : sunshade
Crystalline tint 40%/70% on windshield : M performance mirrors, spoiler, splitters, lip : RKP diffuser : Fully dechromed
Bavsound Stage 1 : V1 Savvy hardwired : Self-coded, will code locally for beer or food