What clay do all of you enthusiast/professional detailers have in your toolkit? Do you have more then one type of bar (such as a mild clay, and a more heavy duty clay) I haven't had any clay in years, and now that I'm getting back into it again I'm thinking of picking up some clay. The last time I had some it was far too abrasive to use on any kind of soft paint (as I found out after using it on my entire trunk lid). Finally, whats your preferred lubricant?