Too aggressive with the Mohair could lead to pilling on the surface & pressure washing may break the bond between the two fabric layers Far too much PW into the wheel arches, on a trad there's a lot of exposed bullet connectors tucked under (yes it was a CX) & he was so close with the lance, then with multiple squirts of TFR that would strip waxoil type underseals Multiple applications of traffic film remover on the topcoat paint will quickly strip your highly buffed wax protection Then some nasty thing that blead purple, with the comment it's acidic...yikes !