[BMWhat?]

Jamesw, I definately agree with these guys, clay is the way. I too prefer sythetics wax.

However, there are mistakes that can be made even with synthetics that will make removing the residue more difficult and possibly leave behind haze or a film. For one, leaving a wax/synthetic on too long (or longer than is specified) can be a problem. Carnauba wax is especially prone to this. The other thing to watch our for is to NOT EVER wax in direct sunlight.

Make certain you follow these basic rules no matter what product you use.