Great advice Iron Chef, and could suggest that shipping damage that can occur on the way, (seen many a brand new car at Avonmouth Docks looking like a tin can) as if it needs to be repaired, any polish used in the valet will be a bitch when you use the 2 pack and if filler needs to be used well then its white/pink/yellow/red dust everywhere..This is a worst case situation but can happen..