Hi ,iam currently using zymol on some cars at present i can speak well of the concours glaze,carbon wax there pre paint cleaner is awsome .
very expensize but you can charge high with the correct types of cars and customers .
Iam finding that a walkaround with the customer cleaning a little area as a demo works well also the cleaner polish works great on oxadized paint works well .
A buddy of mine popped by on the weekend we washed his car he has used the glaze on his car the beading is great also bugs dont stick like they used to.
Iam sure there are other products that work as well for less buck ,but we are aiming at the high rollers with those big bucks.
We are now authorised re sellers here in england and looking to push this on will post vintage car pictures as soon as iam done .
Jay.