As above: and just to add... I would personally rather have thicker clear coat and some orange peel than no orange peel and thin clearcoat.
Remember, defects are always inflicted over time regardless of how safe a wash technique is - its a fact of life, people mark you car in car parks for example... having a good amount of paint left to allow removal of induced marks after an initial detail is very prudent IMHO, as well of course as not risking the loss of clearcoat by making it too thin in the first place.
