I've got my own drill down for washing and waxing our cars: Hose off car Mix car wash soap dujour in the bottle of the Carrand fake foam cannon. Right now I'm going through a gallon of TW Zip wash. Not the best, but works just fine. I foam the entire car top to bottom with the fake foam gun. I use a car wash brush with those ultra soft MF type bristles To clean. Rinse and wipe with a big old bath towel. I than use a few MF cloths to apply TW S&S and polish with several separate MF cloths. Seems to work well. It's pretty quick and the cars look great when done. My question is...how wet can the surface be before applying the TW S&S?